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574 Cards in this Set

  • Front
  • Back

Types of Muscular Tissue

Skeletal


Cardiac


Smooth

Most skeletal muscle tissue move?
Bone
With skeletal muscle tissue it has alternating light & dark bands when examined with a microscope?
Striated
Is skeletal muscle tissue voluntary or involuntary?
Voluntary (consciously controlled)
Cardiac muscle tissue is located where?
Heart
Cardiac muscle tissue has alternating light & dark bands when examined with a microscope?
Striated
Is cardiac muscle tissue voluntary or involuntary?
Involuntary (not consciously controlled)
With cardiac muscle tissue,self-excitable by "pacemaker" is called?
Auto- Rhythmic;

Smooth muscle tissue are located in walls of _____structures, like blood vessles, airways, and many _____?

-Hollow


-Organs

Are smooth muscle tissue striated or non-striated?
Non-Striated
Are smooth muscle tissue voluntary or involuntary?
Involuntary
What are the muscle tissue functions?
– Produces Body Movements

– Stabilizes Body Positions (posture)


– Move Substances within Body (heart pumps blood)


– Generates Heat (shivering increases heat production)

4 muscle tissue properties?


– Contractility


– Extensibility


– Elasticity

Ability to respond to stimuli?
Electrical Excitability
Ability to contract forcefully when stimulated?
Contractility
Ability to stretch without being damaged?
Extensibility
Ability to return to their original length?
Elasticity

What are the connective tissue components?

– Fascia


– Tendon


– Aponeurosis

Sheet of connective tissue that surrounds muscles?
Fascia

What are the 3 layers that extend from fascia?

– Epimysium


– Perimysium


– Endomysium

Which fascia layer is the outermost layer that encircles the entire muscle?
Epimysium
Which fascia layer is the middle layer and surrounds bundles (fascicles) of muscle fibers?
Perimysium
Which fascia layer is the innermost layer that separates individual muscle fibers?
Endomysium
Which connective tissue component attaches muscle to bone?
Tendon
Which connective tissue component is a flat sheet-like tendon?
Aponeurosis

Skeletal muscles are well supplied with_____&_____ _____?

– Nerves


– Blood Vessels

With skeletal muscle tissue, when you have a muscle contraction it requires large amounts of _____&_____?

– ATP


– Nutrients

With nerve and blood supply in skeletal muscle tissue each muscle fiber is in close contact with a neuron known as the_____ _____?
Neuromuscular Junction
With microscopic anatomy in skeletal muscle tissue, a muscle fiber (cell) is known as a?
Myofiber
With microscopic anatomy in skeletal muscle tissue, a myofibrillar consist of many smaller muscle fibers known as?
Myofibrils
With microscopic anatomy in skeletal muscle tissue, Myofibrils consist of the smallest muscle fibers known as?
Myofilaments (thick& thin)
With microscopic anatomy and skeletal muscle tissue these are the plasma membrane and cytoplasm of muscle cell?
Sarcolemma & Sarcoplasm
With microscopic anatomy in skeletal muscle tissue this stores calcium for muscle contraction?
Sarcoplasmic Reticulum
With myrofibril and myrofilaments this is functional units of striated muscle (cardiac and skeletal) alternating light and dark areas formed by patterns of myrofilaments?
Sarcomeres
With myrofibril and myrofilaments this separate sarcomeres and forms boundaries?
Z Disc
With myrofibril and myrofilaments this is the darker middle area of sarcomere and thick and thin filaments overlap?
A Band
With myrofibril and myrofilaments this is the lighter area that contains only thin filaments and where Z discs passed through the center?
I Band
With myrofibril and myrofilaments this is the center of each A band and contains only thick filaments?
H Zone

With contraction and relaxation of skeletal muscles, the sliding filament mechanism has myosin heads of_____filaments that attach to and pull on actin myosin binding sites of_____filaments?

– Thick


– Thin

With contraction and relaxation of skeletal muscles, the sliding filament mechanism is where Z discs come closer together causing_____filaments to_____over thick filaments toward center of sarcomere?

– Thin


– Slide

With contraction and relaxation of skeletal muscles, the sliding filament mechanism leads to_____of the entire muscle?
Shortening

Name the 4 parts of the thick and thin myofilaments?

– Thick Myofilaments


– Thin Myofilaments


– Contractile Proteins


– Regulatory Proteins

With thick and thin myofilaments this is composed of many myosin molecules?
Thick Myofilaments
With thick and thin myofilaments this is composed of actin, troponin, and tropomyosin?
Thin Myofilaments
With thick and thin myofilaments this is myosin (pulls) & actin (pulled)?
Contractile Proteins
With thick and thin myofilaments this is troponin in tropomyosin?
Regulatory Proteins
With muscular hypertrophy and atrophy, an enlargement of existing muscle fibers is where muscle growth occurs by?
Hypertrophy
With muscular hypertrophy and atrophy, this is a wasting away of muscles, disuse and denervation?
Atrophy
With muscular hypertrophy and atrophy, this is a group of inherited muscle destroying diseases?
Muscular Dystrophy
Muscular dystrophy is a sex linked trait and is most common in?
Males
The point of communication (synapse) between neurons and muscle fiber?
Neuromuscular Junction
With neuromuscular junction this is communication between a neuron and an effector (muscle fiber or another neuron)?
Synapse
With neuromuscular junction this is a gap between cells?
Synaptic Cleft
With neuromuscular junction this is where chemicals are released and relays the message to effector?
Neurotransmitters
With neuromuscular junction this has sacs containing neurotransmitters?
Synaptic Vesicles
With neuromuscular junctions this is the region of sarcolelemma that contains neurotransmitters (acetylcholine) receptors?
Motor End Plate

With neuromuscular junction, nerve impulses produce muscle action potentials by?

– Releasing Acetylchlorine (neurotransmitter)


– Activates ACh Receptors


– Produces a Muscle Action Potential (MAP)


– Termination of ACh Activity

Which muscle action potential is where nerve impulses trigger synaptic vesicles to release ACh into synaptic cleft?
Releasing Acetylchlorine
Which muscle action potential is binding of ACh 2 receptor on motor end plate and opens sodium ion channels (Na+ flows inside of muscle cell)?
Activates ACh Receptors
Which muscle action potential is where inflow of Na+ makes the inside of muscle fiber more positively charged, triggering a muscle action potential?
Produces a Muscle Action Potential (MAP)
Map travels to_____releasing stored Ca2+?
SR
Which muscle action potential is where ACh effects last briefly and is rapidly broken down by enzyme?
Termination of ACh Activity
Nerve impulses trigger Ca++ release from SR into_____?
Sarcoplasm
Increased Ca++ levels in sarcoplasm_____contraction?
Starts

Ca++ binds to_____on thin filaments, exposing actin myosin_____ _____allowing cross bridges to form?

– Troponin


– Binding Sites

SR contains Ca++_____that return Ca++ back to SR decreasing_____levels in sarcoplasm?

– Pumps


– Calcium

As Ca++ levels in sarcoplasm_____, myosin binding sites are covered and muscle relaxes?
Decrease

Contraction cycle consists of 4 steps?

– ATP Hydrolysis (breakdown)


– Formation of Cross Bridges


– Power Stroke (contraction)


– Detachment of Myosin from Actin

Which step of the contraction cycle is where breakdown of ATP energizes myosin head?
ATP Hydrolysis (breakdown)
Which step of the contraction cycle is where myosin head attaches to actin myosin binding sites?
Formation of Cross Bridges
Which step of the contraction cycle is where myosin cross bridges pull actin, sliding thin myofilaments toward center of sarcomere?
Power Stroke (contraction)
Which step of the contraction cycle is where ATP binds to myosin head, detaching myosin head from actin?
Detachment of Myosin from Actin

With the detachment of myosin from actin, the contraction cycle repeats as long as_____is available and Ca2+ levels are significantly_____?

– ATP


– High

With detachment of myosin from actin, repeated cycles_____sarcomere further?
Shortens
With production of ATP in muscle fibers, a huge amount of ATP is needed to power the_____ cycle, and pump _____into the SR?
– Contraction – Ca2+
The amount of ATP inside muscle fibers powers contraction for only a?
Few Seconds

Muscle fibers replenish ATP by 3 methods?

– Creatine Phosphate


– Anaerobic


– Aerobic

When muscle fibers replenish ATP which method is unique to muscle fibers, and lasts 15 seconds?
Creatine Phosphate
When muscle fibers replenish ATP which method is where cellular respiration forms lactic acid (strength training)?
Anaerobic (without oxygen)
When muscle fibers replenish ATP which method is where cellular respiration forms the most ATP (endurance training)?
Aerobic (with oxygen)
Inability of muscle to maintain force of contraction after prolonged activity?
Muscle Fatigue
A factor that contributes to muscle fatigue would be inadequate release of_____ions from SR?
Calcium
A factor that contributes to muscle fatigue would be depletion of_____ _____?
Creatine Phosphate
A factor that contributes to muscle fatigue would be insignificant_____?
Oxygen
A factor that contributes to muscle fatigue would be depletion of_____and other nutrients?
Glycogen
A factor that contributes to muscle fatigue would be buildup of_____ _____?
Lactic Acid
The_____force of muscle contraction varies?
Tension
Maximal tension (force/shortening) depends on the_____of motor units activated?
Number
Maximal tension (force/shortening) depends on the_____of nerve impulses (stimulation)?
Frequency
Maximal tension (force/shortening) depends on the amount of myofilaments _____ before contraction?
Overlap
Maximal tension (force/shortening) depends on the nutrients and _____ availability?
Oxygen
A brief contraction (single pull) of all muscle fibers within a motor unit in response one nerve impulse is what?
Twitch
A twitch consist of a _____(____), contraction and relaxation period?
Latent (delay)
This consist of a motor neuron and all the muscle fibers it stimulates?
Motor Unit (light switch)

Precise muscle movements consist of many_____motor units, like vocal cords (1 neuron: _____ muscle fibers)

– Small


– Few

Large powerful muscle movements consist of_____motor units, like hamstrings (1 neuron: _____ muscle fibers)

– Large


– Many

The total strength (force) of a contraction depends on the_____&_____of motor units activated (turned on)?
– Size & Number

A myogram of twitch contraction has 3 periods?

– Latent Period


– Contraction Period


– Relaxation Period

With a myogram of twitch contraction which period is a brief delay between stimulus and contraction; Ca++ levels increase in sarcoplasm?
Latent Period
With a myogram of twitch contraction which period is where cross bridges form "power stroke"?
Contraction Period
With a myogram of twitch contraction which period is where Ca++ levels decrease in sarcoplasm covering myosin binding sites; myosin heads detach from actin?
Relaxation Period
With frequency of nerve impulses this produces larger contractions when nerve impulses occur one after the other; calcium levels increase in sarcoplasm with each nerve impulse?
Wave Summation
With frequency of nerve impulses this results in a wavering contraction when a muscle partially relaxes between nerve impulses such as during fatigue?
Unfused Tetanus
With frequency of nerve impulses this results in a sustained (normal) contraction when a muscle does not relax between nerve impulses?
Fused Tetanus
With types of skeletal muscle fibers, muscle fibers contract at different speeds and vary how quickly they_____?
Fatigue

3 main types of skeletal muscle fibers?

– Slow Oxidative Fibers


– Fast Oxidative


– Glycolytic Fibers


– Fast Glycolytic Fibers

Which type of skeletal muscle fibers is the least powerful type of muscle fiber and generates ATP mainly by aerobic methods?
Slow Oxidative Fibers (SO fibers)
Which type of skeletal muscle fibers has the slowest speed of contraction and the highest resistance to fatigue?
Slow Oxidative Fibers (SO fibers)

Slow oxidative fibers (SO fibers) are capable of_____, sustained contractions, and is most abundant in_____muscles?

– Prolonged


– Postural

Slow oxidative fibers (SO fibers) are adapted for maintaining posture (anatomical position)&_____ –_____activities?
Endurance – Type
Which type skeletal muscle fiber generate ATP by aerobic and anaerobic methods, and has intermediate resistance to fatigue?
Fast Oxidative – Glycolytic Fibers (FOG)

With fast oxidative – glycolytic fibers (FOG) the speed of contraction is_____, and are most abundant in_____ _____muscles?

– Faster


– Lower Limb

Fast oxidative – glycolytic fibers (FOG) contribute to activities such as_____&_____?
Walking & Sprinting
Which type of skeletal muscle fiber has the most powerful type of muscle fibers and generate ATP by anaerobic method?
Fast Glycolytic Fibers (FG fibers)

Fast glycolytic fibers (FG fibers) contract _____ and have the _____resistance to fatigue?

-Fastest


-Lowest

Fast glycolytic fibers (FG fibers) is most abundant in _____ _____ muscles, and is adapted for intense _____ training activities of short duration like _____ _____?

-Upper Limb-Strength


-Weight Lifting

With distribution and recruitment of different types of fibers, most muscles are a mixture of_____ _____types of muscle fibers?
All 3

With distribution and recruitment of different types of fibers, skeletal muscles of any given_____ _____are all the_____type?

– Motor Unit


– Same

With distribution and recruitment of different types of fibers, proportions vary depending on_____action, persons training regiment, and_____factors?

– Muscle


– Genetic

2 types of contractions?

– Isometric Contraction


– Isotonic Contraction

Tensions generated is not enough for object to be moved and muscle does not change it's length is what type of contraction?
Isometric Contraction
Holding a book steady using an outstretched arm is what type of contraction?
Isometric Contraction
Isometric contraction_____to isotonic contraction?
Leads
Muscle changes length producing movements like picking up a book off the table is what type of contraction?
Isotonic Contraction

2 types of isotonic contraction?

– Concentric Contractions (flexion)


– Eccentric Contractions (extension)

Muscle spasms are_____contractions of muscles?
Involuntary
A cramp is a painful_____contraction?
Spasmodic

Muscle spasms_____blood vessels_____blood flow?

– Shorten


– Reducing

Massage can_____or_____severity of muscle spasms?

– Eliminate


– Reduce

With muscle spasms, massage_____blood flow and resets_____ _____in area?

– Increases


– Muscle Tone

With exercise and skeletal muscle tissue ratio of fast glycolytic and slow oxidative fibers are_____determined?
Genetically
With exercise and skeletal muscle tissue various types of exercises can_____muscle fibers?
Transform

Aerobic exercises transforms some _____ fibers into _____ fibers; endurance training?

– Fast Glycolytic (FG)


– Fast Oxidative Glycolytic (FOG)

Anaerobic exercises increase size of _____fibers by hypertrophy; strength training?
Fast Glycolytic (FG)
Cardiac muscle tissue has _____ fibers?
Branched
With cardiac muscle tissue _____ _____ connects fibers?
Intercalated Discs
Cardiac muscle tissue has _____muscle fibers " pacemaker"?
Autorhythmic
Smooth muscle tissue is _____ shaped; thickest in middle and tapered ends?
Spindle

2 types of smooth muscle tissue?

– Single Unit (visceral)


– Multiunit

Smooth muscle tissue regeneration is _____ compared to other muscle tissues?
Considerable
With aging and muscular tissue it has progressive loss of skeletal muscle_____?
Mass
With aging and muscular tissue it _____ in maximal strength?
Decreases
With aging and muscular tissue you have slowing of muscle_____?
Reflexes
With aging in muscular tissue you have loss of_____?
Flexibility
With aging in muscular tissue the number of _____ _____ fibers increase?
Slow Oxidative (SO)
With aging and muscular tissue aerobic activities and strength training can slow _____ in muscular performance?
Decline
Increased muscle tone?
Hypertonia
Decreased muscle tone?
Hypotonia
Pain associated with muscles?
Myalgia
Tearing of muscle accompanied by bleeding and severe pain?
Muscle Strain (pulled muscle)
Attaches muscles to bones?
Tendons
Stationary attachment?
Origin
Fleshy portion of muscle?
Belly
Main movements? (prime movers.)
Action
Action is reversed?
Reverse Muscle Action
Rigid structure (bone) that moves at fixed point?
Lever
Fixed point; joint
Fulcrum
Force (contraction) that causes movement?
Effort (E)
Force opposes movement?
Load (L) or Resistance (R)
Fascicles spread over broad area?
Triangular
Tendons extending nearly entire muscle length?
Pennate
One side?
Unipennate
Both sides?
Bipennate
Group of muscles with common functions?
Compartment
Relative to midline; oblique (diagonal), transverse (perpendicular), rectus (parallel)?
Direction
Maximus, minimus?
Size
Triangular, circular?
Shape
Flexor, extensor, supinator?
Action
Biceps, triceps, quadriceps?
Number of Origins
Which occipitofrontalis draws scalp back, raising eyebrows?
Occipitalis

What muscles move the mouth?

– Orbicularis Oris


– Levator Labii Superiors


– Buccinator


– Mentalis


– Platysma

Closes lips. "Kissing"?
Obicularis Oris
Elevates upper lip. "Elvis"?
Levator Libii Superioris
Cheek. "Trumpeters"?
Buccinator

Muscles that move orbit and eyebrows are?

– Orbicularis Oculi.


– Corrugator Supercilii

Closes like "crows" feet?
Orbicularis Oculi
Frowning?
Corrugator Supercilii

The 7 extrinsic eye muscles are?

– Superior Rectus


– Interior Rectus


– Lateral Rectus


– Medial Rectus


– Superior Oblique


– Inferior Oblique


– Levator Palpebrae Superioris (LPS)

The medial rectus does what?
Adducts
Muscles of mastication innervation is?
Trigeminal (V)

Name the anterior neck muscles in deglutition (swallowing)?

– Digastric


– Stylohyoid


– Mylohyoid


– Geniohyoid

Most suprahyoid muscles are named by?
Origin and Insertion
what suprahyoid muscles have anterior and posterior bellies?
Digastric
Anterior neck muscle?
Scalenes
What anterior neck muscle elevates ribs during deep inhalation?
Scalenes

Prevertebral Neck Muscles?

–Longus Capitis


–Longus Colli

Where are the longus capitis and longus colli prevertebral neck muscles located?
Anterior to the Vertebral Column

The actions of the longus capitis and the longus colli is what?

– Flexes Neck


– Limits Hyperextension

Lateral neck muscle?
Sternocleidomastoid
Divides neck into 2 major triangles; anterior and posterior?
Sternocleidomastoid
The sternocleidomastoid rotates head to opposite side?
Unilaterally
With whiplash injuries what may damage the trapezius?
Hyperextension
With whiplash injuries what may damage SCM and Scalenes?
Hyperflexion
What facilitates healing by increasing blood flow?
Massage
The platysma's origin is where?
Facia over Deltoid and Pectoralis Major Muscles
What lever class is most common?
3rd – Class Lever (FER)
A example of a circular arrangement?
Orbicularis Oculi
Causes main action?
Prime Mover/Agonist
Opposite side; stretches (relaxes)?
Antagonist
Assist the prime mover?
Synergists
Stabilizes the origin of prime mover?
Fixators
Give a example of a muscle that is named by the location of the muscle?
Temporalis (temporal bone)
Give a example of a muscle that is named by the location of origin and insertion?
Sternocleidomastoid
This wrinkles for head?
Frontalis
Innervation for the occipitofrontalis muscles?
Facial Nerve
Innervation for the muscles that move the mouth?
Facial Nerve
Chin " pouting"?
Mentalis
What neck muscle depresses (opens) mandible?
Platysma
The origin of the platysma?
Deltoid And Pectoralis Major

What are the extrinsic eye muscles?

Superior Rectus – elevates–


Inferior Rectus – depresses–


Lateral Rectus – abducts


Medial Rectus – adducts


Superior Oblique – depresses/abducts (down and out)


Inferior Oblique – elevates/abducts (up and out)


Levitate Palpebrae Superioris (LPS) – elevates upper eyelid

Innervation for the extrinsic eye muscles?
All Oculomotor Nerve except lateral rectus and superior oblique
Innervation for the lateral rectus?
Abducens Nerve
Innervation for the superior oblique?
Trochlear Nerve
Stabilizes the origin of prime mover?
Fixators
Give an example of a muscle that is named for the location of the muscle?
Temporalis (temporal bone)
Give an example of a muscle that is named for its location of origin and insertion?
Sternocleidomastoid
What muscle wrinkles for head?
Frontalis
Innervation for the occipitofrontalis muscles?
Facial Nerve
Innervation for the muscles that move the mouth?
Facial Nerve
Chim "pouting"?
Mentalis
Neck; depresses (opens) mandible?
Platysma
Origin for the platysma?
Deltoid and Pectoralis Major

Extrinsic eye muscles?

– Superior Rectus


– Inferior Rectus


– Lateral Rectus


– Medial Rectus


– Superior Oblique


– Inferior Oblique


– Levator Palpebrae Superioris

Innervation for extrinsic eye muscles?
All Oculomotor Nerve except Lateral Rectus and Superior Oblique
The superior rectus has what action?
Elevates
The inferior rectus has what action?
Depresses
The superior oblique has what action?
Depresses/abducts (down and out)
The inferior oblique has what action?
Elevates/Abducts (up and out)
The levator palpebrae superioris has what action?
Elevates Upper Eyelid

The muscles of mastication, masseter, temporalis, medial pterygoid, lateral pterygoid, all do what?

– All Elevates except Lateral Pterygoid (depresses)


– All Protract except Temporalis (retracts)

The suprahyoid muscles, digastric, stylohyoid, mylohyoid, and geniohyoid do what?
All Elevate Hyoid
This anterior neck muscle elevates ribs during inhalation and flex neck and head?
Scalenes
This muscle is one of the largest and most important neck muscles, and flexes neck/head bilaterally?
Sternocleidomastoid
Innervation for the sternocleidomastoid?
Accessory Nerve
How many individual muscles are there in the body approximately
700
Attachment to the movable bone
Insertion
3 types of levers ?
First ClassSecond ClassThird Class
First class lever
*Fulcrum in middle* seesaw or scissors
second class lever
* load is in the middle* wheelbarrow* mechanical advantage
Third class lever
* effort is in the middle * tweezers or tongs * most numerous type in body

Types of muscle arrangements

* parallel


* fusiform


* circular


* triangular


* pennate

Agonist
* prime mover* contracts to cause action
Antagonist
* stretches, yields to the prime mover
Synergists
* muscles working together
Fixators
* muscles that act to steady the origin of the prime mover.
Rectus
parallel to the midline
transverse
perpendicular to the midline
oblique
diagonal to the midline
maximus
largest
minimus
smallest
longus
long
brevis
short
latissimus
widest
magnus
large
major
larger
minor
smaller
vastus
huge
deltoid
triangle
trapezius
trapazoid
serrattus
saw shaped
rhomboid
diamond shaped
orbicularis
circular
pectinate
comblike
piriformis
pear shaped
platys
flat
quadratus
square, four sided
gracilis
slender
flexor
decreases joint angle
extensor
increases joint angle
abductor
moves bone away from midline
addductor
moves move towards midline
levator
raises bone
depressor
lowers or depresses a body part
supinator
turns palm anteriorly
pronator
turns palm posterior
sphincter
decreases the size of an opening
tensor
makes a body part rigid
rotator
rotates a bone around its longitudinal axis

Muscles of facial expression

* Occipitofrontalis (frontalis & occipitalis)


* Orbicularis oris


* zygomatic major


* zygomatic minor


* nasalis


* levator labil superioris


* levator labil inferioris


* depressor anguli


* levator anguli oris


* buccinator


* risorius


* mentalis


* platysma


* orbicularis oculi


* corrugator supercilli

frontalis

O: epicranial aponeurosis


I: skin superior to the suborbital margin


A: raises eyebrows


R : draws scalp anteriorly


N: cranial nerve VII

occipitalis

O: occipital bone


I: epicranial apneurosis


A: draws scalp posterior


N: cranial VII

Orbicularis oris

O: muscle fibers surrounding the opening of mouth


I: skin a corner of mouth


A: closes and protrudes the lips


N: cranial VII

zygomatic major

O: zygomatic bone


I: skin at angle of mouth


A: draws angle of mouth superiorly and laterally


N: Cranial VII

zygomatic minor

O: zygomatic bone


I: upper lip


A: exposes teeth


N: cranial VII

nasalis

O: maxilla


I: skin over cartliage portion of the nose


A: dilates external nares


N: cranial nerve VII

levator labil superioris

O: maxilla


I: skin at angle of the mouth and orbicularis oris


A: elevates upper lip


N: cranial nerve VII

Depressor labil inferioris

O: mandible


I: skin of lower lip


A: depresses lower lip


N Cranial VII

depressor anguli

O: mandible


I: angle of mouth


A: draws angle of mouth laterally and inferiorly


N: cranial VII

levator anguli oris

O: inferior in the infraorbital foramen


I: sin of the lower lip and orbicularis oris


A: draws angle of mouth laterally and superiorly


N: cranial VII

buccinator

O: alveolar process of the maxilla and mandible


I: orbicularis oris


A: presses cheeks again teeth, and keeps food in between teeth.


N: cranial VII

risorius

O: fascia over parptoid gland


I: skin at angle of mouth


A: draws angle of mouth laterally as in grimicing


N cranial VII

mentalis

O: mandible near midline


I: skin of interor chin


A: elevates and protrudes lower lip and pulls skin of chin up


N: cranial VII

platysma

O: facia over deltoid and pectoralis major


I: mandible, muscles around angle of mouth and skin of lower face


A: draws outer part of lower lip inferiorly and posteriorly as in pouting


N: cranial VII

orbicularis oculi

O: medial wall of the orbit


I: cicular path around orbit


A: closes the eye


N: Cranial VII

corrugator supercilli

O: medial end of supoercillary arch of the frontal bone


I: skin of eyebrows


A: draw eyebrows inferiorly and medially and wrinkles the skin of the forehead vertically


N: cranial VII

muscles of mastication

temporalis


masseter


medial pterygold


lateral pterygold

temporalis

O: temporal bone


I: coronoid process and ramus of mandible


A: elevates and retracts the mandible


N: Cranial V (trigeminal)

masseter

O: maxilla and zygomatic arch


I: angle of the ramus of mandible


A: elevates mandible


N: Cranial V (trigeminal)

medial pterygold

O: medial surface of the lateral portion of pterygold process


I: angle of ramus of mandible


A: elevates and protracts(protrudes) mandible and moves mandible from side to side.


N: cranial V (trigeminal)

lateral pterygold

O: sphenoid bone


I: condyle of the mandible TMJ


A depresses mandible and moves mandible from side to side.


N: cranial V (trigeminal)

Muscles the move the eyeball

superior rectus


inferior rectus


lateral rectus


medial rectus


superior onlique


inferior onlique


lavator palpebrae

superior rectus

O: common tendinous ring


I: superior central eyeball


A: moves eye superiorly


N: oculomotor nerver III

inferior rectus

O: common tendinous ring


I: inferior and central part of the eyeball


A: moves eyeball inferiorly


N: oculomotor (III) nerve

lateral rectus

O: common tendinous ring


I: lateral side of the eyeball


A: moves eyebal laterally (abduction)


N: Adbucens (VI) nerve

medial rectus

O: common tendinous ring


I: medial side of eyeball


A: moves eyeball medially


N: oculomotor (III)

superior oblique

O: sphenoid bone


I: eyeball between superior and lateral recti


A: moves eyeball inferiorly and laterally


N Trochlear (IV)

inferior onlique

O: maxialla in floor of orbit


I: eyeball between inferior and lateral recti


A: moves eyeball superiorly and laterally


N: Oculomotor (III)

lavator palpebrae

O: roof of orbit


I: skin and tarsal plate of upper eyelid


A: elevate upper eyelid


N: oculomotor (III)

Suprahyoid muscles

digastric


stylohyoid


mylohyoid


geniohyoid

infrahyoid muscles

omohyoid


sternohyoid


sternothyroid


thyrohyoid

digastric

O: mandible/temporal bone


I: hyloid


A: elvates hyoid


R: depresses mandible


N: trigeminal / facial nerve

stylohyoid

O: styloid process of the temporal bone


I: hyoid bone


A: elevate hyoid and draws it posteriorly


N: facial nerve VII

mylohyoid

O: mandible


I: hyoid bone


A: elevates hyoid bone


R: dresses mandible


N: trigeminal nerve

geniohyoid

O: mandible


I: hyoid


A: elevates hyoid


R: depresses mandible


N: C1

omohyoid

O: superior border of scapula and superior transverse ligament


I: hyoid


A: depresses hyoid

sternohyoid

O: medial end of the clavicle and manubrium of sternum


I: hyoid


A: depresses hyoid

sternothyroid

O: manubrium of sternum


I: thyroid cartilage of larynx


A: depresses thyroid cartliage

thyrohyoid

O: thyroid cartiliage of larynx


I: hyoid


A: depresses hyoid


R: elevates thyroid cartilage

muscles of anterior neck for elevating ribs or flexing neck and head

anterior scalene


middle scalene


posterior scalene


longus capitas


longus colli


rectus capitas anterior


rectus capitas laterallis

anterior scalene

O: transverse processes of c3-c6


I: first rib


A elevate rib in deep inhalation


R: flex cervical vertibrae, slightly rotate


N: cerivical spinal nerves.

middle scalene

O: transverse processes of c2-c7


I: first rib


A: Elevate first rib


N: cervical spinal nerves.

posterior scalene

O: transverse processes of c4-c6


I: second rib


A: Elevate second rib during deep inhalation


N: Cervical spinal nerves

longus capitas

O: Transverse process c3-c6


I: base of the occiput


A: Flexes neck and prevents hyperextension, rotates head to same side.


N: cervicle spinal nerves.

longus colli

O: anterior vertebral surfaces of c3-t3


I: transverse processes of the upper cervical vertebrae


A: Flexes neck limits hyperextension, rotates neck


N: cervical spinal nerves

rectus capitas anterior

O: lateral surface of C1


I: base of occipital bone


A: flexion of the AO joint, acting sigular lateral AO flexion


N: C1

rectus capitas laterallis

O: Transverse process of C1


I: base of occipital bone


A: acting together , flexion at AO actiing singular flexion AO joint


N: C1

This accompanies arm movement in the same direction; increases range of motion of arm?
Movements of Scapula Muscles
Shrugging shoulders has what movement on scapula?
Elevation (superior movement of scapula)
Pulling a rope down or doing a pull-up has what movement on the scapula?
Depression (inferior movement of scapula)
Doing push ups or punching (arms forward) has what movement on the scapula?
Abduction (protraction) (lateral and anterior movement of scapula)
Lateral and anterior movement of scapula is what?
Abduction (protraction)
Medial and posterior movement of scapula is what?
Adduction
Pulling arms back in rowing has what movement on the scapula?
Adduction (retraction)

Anterior muscles that move the pectoral girdle are?

– Subclavius


– Pectoralis Minor


– Serratus Anterior

Innervation for the pectoralis minor?
Pectoral Nerve
What is the serratus anterior's insertion?
Vertebral (medial) Borders of Scapula

What anterior pectoral girdle muscles protract (abduct) scapula and elevates ribs during forced inhalation?

– Pectoralis Minor


– Serratus Anterior

What are the posterior pectoral girdle muscles?

– Trapezius


– Levator Scapulae


– Rhomboid Major


– Rhomboid Minor

Most superficial upper back muscle?
Trapezius
The trapezius, levator scapulae, rhomboids major, and rhomboids minor all originate on the?
Axial Skeleton (vertebrae)
The levator scapulae, rhomboids major and minor all insert on the?
Vertebral (medial) Border of Scapula
All posterior pectoral girdle muscles retract/adducts the scapula except the?
Levator Scapulae
What is upward rotation of the pectoral girdle?
Moving inferior Angle of Scapula Laterally
What is downward rotation of the pectoral girdle?
Moving Interior Angle of Scapula Medially

What are the 7 scapular muscles?

– Deltoid


– Teres Major


– Coracobrachialis


– Supraspinatus


– Infraspinatus


– Teres Minor


– Subscapularis

Most superficial lower back muscle that forms the posterior wall of axilla?
Latissimus Dorsi

Both of these muscles move humerus, adduct (O below I) and medially rotate (I inside arm)

– Pectoralis Major


– Latissimus Dorsi

The deltoid has 3 sets of fibers, they are?

– Anterior


– Middle


– Posterior

What are the 5 actions of the deltoid?

– Flexes


– Extends


– Abducts


– Medial Rotation


– Lateral Rotation

This scapular muscle originates on the coracoid process?
Coracobrachialis
Suitcase muscle?
Supraspinatus
The supraspinatus originate on the?
Supraspinatus Fossa
The infraspinatus originates on the?
Infraspinatus Fossa
Muscles that circle the tendons around shoulder joint are the?
Rotator Cuff Muscles
What muscle is most often involved with rotator cuff injuries?
Supraspinatus
Continual pinching of the supraspinatus tendon may tear tendon from the bone is called what?
Impingement Syndrome
The rotator cuff muscles are also known as the?
SIT S Muscles

What are the anterior (flexor) arm compartment muscles that move the forearm at the elbow joint?

– Biceps Brachii


– Brachialis


– Brachioradialis

This anterior arm compartment muscle is deep to the biceps and is the most powerful forearm flexor known as the "workhorse"?
Brachialis
The brachialis flexes forearm, and inserts on the?
Ulnar Tuberosity

The brachioradialis flexes forearm, originates on the__________, and inserts on the__________?

– Brachium


– Radius

The posterior (extensor) arm compartment muscles that move the forearm at the elbow joint are?

– Triceps Brachii


– Anconeus


– Supinator


– Pronator Teres


– Pronator Quadratus

Innervation for all posterior arm muscles?
Radial Nerve

These muscles both pronate forearm (rolls radius in)?

– Pronator Teres


– pronator Quadratus

What are the superficial flexors that move wrist and digits?

– Flexor Carpi Radialis


– Palmaris Longus


– Flexor Carpi Ulnaris (FCU)

The superficial flexors, the flexor carpi radialis, palmaris longus, and flexor carpi ulnaris all originate on the?
Medial Epicondyle
All the superficial flexors, the flexor carbi radialis, palmaris longus, and the flexor carpi ulnaris (FCU) has what action?
Flex Wrist Joint
All superficial flexor muscles, except that FCU, innervate where?
Median Nerve
The innovation for the flexor carpi ulnaris (FCU), a superficial flexor is where?
Ulnar Nerve
This superficial flexor muscle weekly flexes wrist and insert on the Palmer Aponeurosis?
Palmaris Longus
The deep flexor, flexor digitorum profundus inserts where?
Distal Phalanges (digits 2 – 5)

What are the superficial extensors that move wrist and digits?

– Extensor Carpi Radialis Longus


– Extensor Carpi Radialis Brevis


– Extensor Digitorum


– Extensor Digiti Minimi


– Extensor Carpi Ulnaris

All superficial extensor muscles originate where?
Lateral Epicondyle
All superficial extensor muscles innervate on the__________, and all___________ wrist joint?
– Radial Nerve– Extend
What superficial extensor muscles abduct wrist?
Extensor Carpi Radialis Longus & Brevis
What superficial extensor muscle adducts wrist?
Extensor Carpi Ulnaris (I – ulnar side)

What are the deep extensors that move wrist and digits?

– Abductor Pollicis Longus


– Extensor Pollices Brevis


– Extensor Pollicis Longus


– Extensor Indicis

What deep extensor muscle abducts thumb (digit 1)?
Abductor Pollicis Longus

What deep extensor muscles extends thumb?

– Extensor Pollicis Brevis


– Extensor Pollicis Longus

With repetitive strain or motion injuries, name some conditions that result from poor posture, poor body mechanics or repeated activities?

– Tennis Elbow


– Golfers Elbow


– Carpal Tunnel Syndrome

Strain of the forearm extensors result and pain of lateral epicondyle (origin) is what type of condition?
Tennis Elbow
Strain of the forearm flexors result in pain of medial epicondyle (origin) is what type of condition?
Golfers Elbow
Compression of median nerve is what type of condition?
Carpal Tunnel Syndrome

What are the intrinsic muscles of the hand?

– Thenar


– Hypothenar


– Intermediate

Which intrinsic muscle is at the ball of the thumb?
Thenar
Which intrinsic muscle is at the ball of the little finger?
Hypothenar
Which intrinsic muscle is midpalmar?
Intermediate

What are the midpalmer muscles?

– Lumbricals


– Palmer Interossei


– Dorsal Interossei

Which midpalmer muscle of the hand adducts fingers?
Palmer Inrtossei (PAD)
Which midpalmer muscle of the hand abducts?
Dorsal Interossei
This muscle inserts on the coracoid process of the scapula, and it innervation is the pectoral nerve?
Pectoralis Minor
What's the name of the boxers muscle?
Serratus Anterior
The subclavius, pectoralis minor, and serratus anterior all originate where?
Axial Skeleton (ribs)
The most superficial upper back muscle?
Trapezius
The innervation for the trapezius?
Accessory Nerve
The trapezius, levator scapulae, rhomboids major and rhomboids minor all do what to the scapula?
Elevate
This posterior pectoral girdle muscle elevates and depresses scapula?
Trapezius

What are the 2 axial muscles that move the humerus?

– Pectoralis Major


– Latissimus Dorsi (swimmers muscle)

Actions for the pectoralis major?
Flexes Arm and Extends Flexed Arm Back to Trunk
What muscle is the swimmers muscle?
Latissimus Dorsi
Insertion for the deltoid?
Deltoid Tuberosity
Innervation of the deltoid?
Axillary Nerve
Deltoid, coracobrachialis does what?
Flexes Arm
Deltoid and supraspinatus does what?
Abduct Arm
Deltoid, infraspinatus and teres minor do what?
Laterally Rotate

What are the sit s muscles?

– Supraspinatus


– Infraspinatus


– Teres Minor


– Subscapularis

Supraspinatus, infraspinatus and teres minor insert where?
Greater Tubercle
Subscapularis inserts where?
Lesser Tubercle
The biceps brachii inserts where?
Radial Tuberosity
This muscle has 3 heads (long, lateral and medial) and crosses shoulders (extends arm) and elbow joints?
Triceps Brachii
This muscle is synergist to triceps?
Anconeus
The triceps brachii and anconeus both insert where?
Olecranon Process
Innervation for all posterior arm muscles?
Radial Nerve
This muscle roles radius out?
Supinator

These muscles roll radius in?

– Pronator Teres


– Pronator Quadratus

The pronator teres and pronator quadratus both do what?
Pronate Forearm
The flexor carpi radialis does what?
Abducts Wrist
This muscle is absent in 10% of individuals; tendon repairs?
Palmaris Longus
The flexor carpi ulnris does what?
Adducts Hand
Action for the flexor pollicis longus?
Flexes Thumb
The flexor digitorum profundus does what?
Flexes Digits 2 – 5
The extensor digitorum does what?
Extends Digits 2 – 5
The extensor digiti minimi does what?
Extends little finger (digit 5)
The extensor indicis does what?
Extends index finger (digit 2)
What is the iliopsoas and psoas major's origin?
Body & transverse proseses of lumber Vertebrae
What anterior pelvic compartment muscle is the main thigh flexor?
Iliacus
The lateral thigh compartment muscle, tensor fasciae latae has what action?
Abducts

What are the medial thigh compartment muscles?

– Pectineus


– Adductor Brevis


– Adductor Longus


– Adductor Magnus


– Gracilis

All medial thigh compartment muscles, pectineus, adductor brevis, adductor longus, adductor Magnus, and gracilis insert where?
Linea Aspera
All medial thigh compartment muscles innervate __________, except pectineus (femoral).
Obturator Nerve

What are the superficial posterior pelvic compartment (buttocks) muscles?

– Gluteus Maximus


– Gluteus Medius & Gluteus Minimus

Superficial posterior pelvic compartment muscle laterally rotates thigh?
Gluteus Maximus
What superficial posterior pelvic compartment muscle is a common site for intramuscular injections?
Gluteus Medius

What are the 6 deep hip lateral rotators of the deep posterior pelvic compartment (Buttocks)?

– Piriformis


– Obturator Internus


– Obturator Externus


– Superior Gemellus


– Inferior Gemellus


– Quadratus Femoris

All 6 deep hip lateral rotators insert where?
Outside Greater Trochanter
A rupture or tear of the inner thigh muscles; most often occur during sprinting or twisting, or from kicking a solid object is what?
Groin Pulls
Sharp pain in the inguinal region, swelling, bruising or inability to contract the muscles is what?
Symptoms of Groin Pulls
What do you do for groin pulls?
RICE Therapy (2 – 3 days)
What are the anterior thigh muscles that move the femur, tibia, and fibula?
– Quadriceps Femoris– Rectus Femoris– Vastus Lateralis– Vastus Medialis– Vastus Intermediates– Sartorius

These 2 muscles of the anterior thigh originates on the linea aspera?

– Vastus Lateralis


– Vastus Medialis

What anterior thigh muscle originates on the body of the femur?
Vastus Intermediates
All anterior thigh muscles insert where?
Patella And Tibial Tuberosity via Patellar Ligament
All anterior thigh muscle innervation?
Femoral Nerve

What are the posterior thigh hamstrings?

– Biceps Femoris


– Semimembranosus


– Semitendinosis

All hamstring muscles originate where?
Ischial Tuberosity
Hamstrings, biceps femoris, semimembranosus, and semitendinosis innervation?
Tibial Nerve
Origin of hamstrings tears from ischial tuberosity is what?
Pulled Hamstrings
3 muscles stabilize and reinforce medial border of knee is what group?
Pes Anserinus
What anterior leg muscle inverts foot?
Tibialis Anterior
What anterior leg muscle Everts foot?
Peroneus/Fibularis Tertius
What group of muscles all dorsiflex foot (on heels)?
Anterior Leg Muscles
Innervation for the anterior leg muscles?
Deep Peroneal

What are the lateral leg muscles?

– Peroneus/Fibularis Longus


– Peroneus/Fibularis Brevis

Tendons pass posterior to lateral malleolus to insert on the plantar portion of the foot are what muscles?

– Peroneus/Fibularis Longus


– Peroneus/Fibularis Brevis

Innervation for the lateral leg muscles, peroneus/fibularis longus and brevis?
Superficial Peroneal
All superficial posterior leg muscles, gastrocnemius, soleus, and plantaris have what action?
All Plantar Flex Foot at Ankle Joint
What is the strongest tendon in the body?
Achilles Tendon
Innervation for all superficial posterior leg muscles, gastrocnemius, soleus, and plantaris?
Tibial Nerve

What are the deep posterior leg muscles?

– Tibialis Posterior


– Flexor Digitorum Longus


– Flexor Hallucus Longus


– Popliteus

Whats the posterior leg muscle that inverts foot?
Tibialis Posterior
What deep posterior leg muscle flexes toes 2 – 5?
Flexor Digitorum Longus
What deep posterior leg muscle flexes great toe(1)?
Flexor Hallucis Longus
The deep posterior leg muscle, popliteus inserts where?
Popliteal Fossa
Innervation for all posterior thigh and posterior leg muscles?
Tibial Nerve

1st layer of intrinsic muscles that move the toes?

– Abductor Hallucis


– Flexor Digitorum Brevis


– Abductor Digiti Minimi

What intrinsic muscle of the 1st layer flexes toes 2-5?
Flexor Digitorum Brevis
What intrinsic muscle of the 1st layer abducts little toe?
Abductor Digiti Minimi

What are the 2nd plantar layer intrinsic muscles that move the toes?

– Quadratus Plantae


– Lumbricals

What are the 3rd plantar layer intrinsic muscles that move the toes?

– Flexor Hallucis Brevis


– Adductor Hallucis


– Flexor Digiti Minimi Brevis

What intrinsic muscle of the 3rd layer flexes great toe?
Flexor Hallucis Brevis
What intrinsic muscle of the 3rd layer adducts great toe?
Adductor Hallucis
What intrinsic muscle of the 3rd layer flexes little toe?
Flexor Digiti Minimi Brevis

What are the 4th layer intrinsic muscles that move the toes?

– Dorsal Interossei


– Plantar Interossei

What intrinsic muscle of the 4th layer abducts toes 2-4?
Dorsal Interossei (DAB)
What intrinsic muscle of the 4th layer adducts toes 2-4?
Plantar Interossei (PAD)
Frequently caused by faulty training techniques, poorly constructed or worn out running shoes?
Running Related Injuries
Tendinitis of anterior leg compartment muscles, especially tibialis anterior is what?
Shin Splints
Chronic inflammatory irritation of plantar Aponeurosis; most common cause of heel pain in runners is what?
Plantar Fasciitis or Painful Heel Syndrome
When ASIS and PSIS are level?
Anatomical Position
Excessive anterior pelvic tilt; poorly developed abdominal muscles is what?
Slumped Posture

What's the 2 muscles of the iliopsoas?

– Psoas Major


– Iliacus

Psoas major and Iliacus insert where?
Lesser Trochanter
What is the main thigh flexor?
Iliacus
The tensor fasciae latae inserts where?
Lateral Tibia and Fibula by the Iliotibial Band

The medial thigh compartment muscles, pectineus, adductor brevis, adductor longus, adductor magnus, and gracilis all insert where and do what?

– All Insert on the Linea Aspera


– All Adduct and Flex Thigh

Primary thigh extensor?
Gluteus Maximus
The gluteus medius and minimus does what?
Medially Rotate Thigh
The 6 deep hip lateral rotators, piriformis, obturator internus, obturator externus, superior gemellus, inferior gemellus, and quadratus femoris all do what?
Laterally Rotates Femur
All these muscles extend leg at the knee joint (leg forward); main action?
Anterior Thigh Muscles
What anterior thigh muscle flexes femur at hip joint and originates on the AIIS?
Rectus Femoris
All anterior thigh muscles insert where?
Patella and Tibial Tuberosity Via Patellar Ligament
Longest muscle in the body that originates on that ASIS and crosses thigh obliquely; flexes legs and flexes abducts and laterally rotates thigh?
Sartorius " Tailor's"

Hamstrings?

– Biceps Femoris


– Semimembranosus


– Semitendinosis

All hamstring muscles do what?
All Extend Thigh and Flexes Leg
The semi-muscles insert where?
Medial Tibia
Biceps femoris inserts where?
Lateral Fibula
The extensor hallucis longus does what?
Extends Great Toe (1) Upward
The extensor digitorum longus does what?
Extends Toes (2 – 5)
All anterior leg muscles do what?
All Dorsiflex Foot (on heels) Extensors Raise Toes
Peroneus/fibularis longus and brevis do what?
Both Plantar Flex and Evert Foot (pull foot down and out)

Name the calf muscles?

– Gastrocnemius


– Soleus


– Plantaris

All superficial posterior leg muscles insert where?
Calcaneus via Achilles Tendon
All the posterior leg muscles do what?
All plantar flex except popliteus
How many compartments does the thigh have?
3anterior, Posterior, & Medial
Girdle muscle?
Transversus Abdominis

Anterolateral Ab. wall muscles?

-Rectus Abdominis


-External Oblique


-Internal Oblique


-Transversus Abdominis


-Linea Alba


-Umbilicus

Formed by muscles at midline?
Linea Alba
The navel is called what?
Umbilicus
The innervation for the anterolateral abdominal wall muscles?
Thoracic Spinal Nerves
Deepest lower back muscle?
Quadratus Lumborum
Pulls twelfth ribs down during forced inhalation?
Quadratus Lumborum
Unilateral chronic spasm of the quadratus lumborum does what?
Elevates Pelvis and Lowers Limb; " Short Leg Syndrome"(leg length discrepancy/LLD)

Muscles of breathing?

– Diaphragm


– External Intercostals


– Internal Intercostals

Dome – shaped muscle separates thoracic and abdominal cavities?
Diaphragm

3 major openings in diaphragm are what?

– Aortic Hiatus


– Vena Cava Foramen


– Esophageal Hiatus (associated with hiatal hernia)

Innervation for the external and internal intercostals?
Thoracic Spinal Nerves
What separates pelvic cavity above from perineum below?
Pelvic Diaphragm
What is associated with urogenital organs and Anorectal region?
Perineum

What are the 2 splenius muscles?

– Splenius Capitis


– Cervicis

What does the splenius muscle do unilaterally?
Rotates Head to Same Side (O inside I)
What muscle group contains the main extensors of the vertebral column?
Erector Spinae Muscles
With the erectors spinae muscles, the iliocostalis is what to the other muscles?
Lateral
With the erector spinae muscles, the longissimus is what to the other muscles?
Intermediate
With the erector spinae muscles, the spinalis is what to the other muscles?
Medial
What does the transversospinalis muscle do unilaterally?
Rotates head And Vertebral Column to Opposite Side(O outside I)

What are the 2 segmental muscles?

– Interspinales


– Intertransversarii

What type of muscles crossed the fewest numbers of intervertebral joints?
Segmental muscles
The interspinales action is what?
Extension
The inertransversarii action is what?
-Lateral Flexion-Extension
With suboccipital muscles what is the posterior major and minor called?
Rectus Capitis
With suboccipital muscles what is the superior and inferior muscles called?
Obliquus Capitis

What are the actions of the obliquus muscle?

– Extends Head


– Stabilizes and Control Spine Movement of Atlanto


– Occipital Joint

Amount of force, repetition, posture and stress applied to the vertebral column is a factor associated with?
Increased Risk for Back Injuries
Poor physical condition, posture, lack of exercise, and excessive body weight contribute to sprains and strains is a factor associated with?
Increased Risk for Back Injuries
Improper lifting of heavy weight constrain the erector spinae muscles is a factor associated with?
Increased Risk for Back Injuries
It's important to bend the knees and use powerful thigh extensor muscles while lifting a heavy load to?
Prevent Back Injuries
The rectus abdominis, external oblique, and transversus abdominis all have one function in common, what is it?
All function To Compress the Abdomen
The action of the sternocleidomastoid muscle is antagonist to the?
Longissimus Capitis Muscle
The transversus abdominals muscle is located ____to the internal oblique muscle?
Deep
Which muscle flexes the vertebral column?
Rectus Abdominis
The diaphragm muscles insert on the?
Strong Apponeurosis Called the Central Tendon
The levator ani and the coccygeus muscle together do what?
Support And Slightly Raised the Pelvic Floor
The most lateral muscle of the pelvic diaphragm is the?
Coccygeus
The base of the penis is surrounded by the _____muscle?
Bulbospongiousus
Which muscles that move the vertebral column run parallel with the vertical axis of the spine?
Erector Spinae Group
Which of the following muscle is the shortest, with origin and insertion between adjacent vertebrae? A) iliocostalis B) Semispinalis C) Splenius D)Rotatores
Rotatores
Which of the muscle groups that extends the vertebral column is located most laterally?
Iliocostalis
Which muscles of the vertebral column originate and insert only on the transverse processes of the vertebrae?
Intertransversarii
Which muscle acts only in compression of the abdomen?
Transverse Abdominis
Which muscle stabilizes the ribs in forced inhalation?
Quadratus Lumborum
Which muscle contracts during forced inhalation?
Internal Intercostals
Which of the below is located in the ventral region?A) MultifidusB) Transverse AbdominisC) Splenius CapitisD) Gluteus Maximus
Transverse abdominis
Tendinous intersections?
Rectus Abdominis
Forms inguinal ligament; associated with inguinal hernia?
External Oblique
The rectus abdominis, external oblique, internal oblique, and transverse abdominis all do what?
Compress the Abdomen
Posterior abdominal wall; bulky and stable?
Quadratus Lumborum
Laterally flexes trunk elevating it "hip hiker"
Unilaterally (quadratus lumborum)
Stabilizes 12th ribs during forced exhalation?
Quadratus Lumborum
Most important muscle involved in breathing?
Diaphragm
During inhalation (breathing in) this muscle contracts (flattens) increasing thoracic cavity?
Diaphragm
During exhalation (breathing out) this muscle relaxes moving superiorly decreasing thoracic cavity?
Diaphragm
Innervation for the diaphragm?
Phrenic Nerve
During forced inhalation this muscle elevates ribs increasing anteroposterior and lateral thoracic cavity dimensions?
External Intercostals

During forced exhalation this muscle pulls ribs down and in and decreasing anteroposterior and lateral thoracic cavity dimensions?


– Ischiococcygeus

Both these muscles support pelvic viscera and resists inferior movement during coughing, vomiting, urination and defecation?


– Iliococcygeus

What are the 2 components of the levator ani?

– Pubococcygeus


– Iliococcygeus

This is associated with urogenital organs and anorectic region?
Perineum
These muscles are not found in the perineum only on the pelvic floor?
Coccygeus Muscles
These muscles are on the sides and back of the neck?
Splenius Muscles

What do splenius muscles do bilaterally?


– Longissimus (Intermediate)


– Spinalis (medial)

What are the 3 groups of erector spinae muscles?

– Iliocostalis (lateral)


– Longissimus (Intermediate)


– Spinalis (medial)

The transversospinalis muscles, semi-spinalis capitis, cervicis, thoracis, multifidus, and rotatores originate and insert where?

O – Transverse Processes


I – Spinous Processes

The transversospinalis muscles do what bilaterally?
Extends Head And Vertebral Column
Common source of headache?
Suboccipital Muscles, Obliquus Capitis, and Rectus Capitis