Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
118 Cards in this Set
- Front
- Back
All of the muscles of the body considered as an ____ structural group.
|
interrelated
|
|
There are over ____ skeletal muscles in the body
|
600
|
|
The muscular system assist in body ____.
|
Movements
|
|
The muscular system assists in the movement of materials ____.
|
internally (smooth muscles)
|
|
The muscular system produces ____ and ____.
|
heat and energy
|
|
The muscular system assist in maintaining ____ and balance.
|
posture
|
|
The muscular system helps protect ___ organs
|
internal
|
|
___% of heat comes from muscles
|
85%
|
|
All major organs are located behind muscles except ____ ____.
|
male reproductive
|
|
What are the three classifications of muscles?
|
Skeletal muscles, Visceral (smooth) muscles, and Cardiac muscles
|
|
Skeletal muscles is ____ and ____ muscle.
|
voluntary and striated
|
|
Striated means that it is a long slender ____ cells.
|
striped
|
|
Skeletal muscle is attached to the skeleton and ____ the skeleton's moving parts.
|
moves
|
|
Skeletal muscle contracts ____ in response to stimuli
|
quickly
|
|
Skeleton muscles are voluntary but can have ____ response. (such as scaring someone)
|
involuntary
|
|
Visceral (smooth) muscle are ____. (independent of will)
|
involuntary
|
|
Visceral muscles are ____ (has spindle shaped cells)
|
non-striated
|
|
Smooth muscles is found in the viscera, esp the ____, stomach, ____ ____, and blood vessels.
|
intestines, stomach, urinary ducts, and blood vessels
|
|
Smooth muscles contracts ____ in response to stimuli.
|
slowly
|
|
Cardiac muscles are ____ (no control)
|
involuntary
|
|
Cardiac muscles are ____ striated.
|
partially (smooth but striped)
|
|
Cardiac muscle is found only in the ____
|
heart
|
|
Cardiac muscle contracts ____ ____ in response to stimuli.
|
moderately fast
|
|
What is the origin for major skeletal muscles?
|
Where the muscles starts and the less movable end
|
|
What is the insertion for major skeletal muscles?
|
Where it ends and the more movable end.
|
|
What is the body (or belly) of major skeletal muscles?
|
main part of muscle
|
|
Skeletal muscles are enclosed in the ____, which is continuous with the fibrous structures that attach muscles to bones and other structures.
|
epimysium
|
|
Skeletal muscles are ____ to the structures on which they pull during contraction.
|
attached
|
|
Skeletal muscles may be attached ____ to the periosteum of the bone or may be attached by ____ or aponeuroses.
|
directly; tendons
|
|
Skeletal muscles contracts in response to ____ impulses. (natural or artificial)
|
electrical (natural=heart beat, artificial=electrical shock)
|
|
Skeletal muscles that move a body part usually lie ____ to the part that it moves.
|
proximal
|
|
Skeletal muscles moves the body caused by muscles ____ on bones.
|
pulling
|
|
Body movements result form coordinated actions: one muscle ____ while the other ____.
|
contracts; relaxes
|
|
The energy to produce movement in muscles is released from ____ ____ through metabolism.
|
simple sugars
|
|
excitability (being pinched)
|
irritability
|
|
ability to transmit impulses
|
conductivity
|
|
ability to stretch and remain stretched
|
extensibility
|
|
ability to former length when no longer stretched
|
elasticity
|
|
ability to contract or shorten
|
contractility
|
|
slight tention on muscle even when at rest
|
tone
|
|
away from midline
|
abductor
|
|
towards the midline
|
adductor
|
|
lifting a part
|
levator
|
|
lowering a part (sit)
|
depressor
|
|
bending at a joint
|
flexor
|
|
straightening at a joint
|
extensor
|
|
medial rotation-rotating on an axis
|
rotator
|
|
circular motion without moving rest of the body
|
circumduction
|
|
move forward
|
protractor
|
|
move backward
|
retractor
|
|
turn upward
|
supinator
|
|
turn downward
|
pronator
|
|
constriction and closes a body part (urethra and anal sphincter)
|
sphincter
|
|
making a part more ridged (tense muscles)
|
tensor
|
|
generates majority of force to acomplish a movement
|
prime-mover muscle
|
|
muscle responsible for moving a part
|
agonist
|
|
directly opposes the prime mover muscle
|
antagonist
|
|
assist in movement (all other muscles around the one that working)
|
synergist
|
|
stabilizing a joint
|
fixator
|
|
facial expressions, chewing, swallowing, blinking, speaking
|
head and face muscles
|
|
rotate, side to side, front to back
|
neck muscles
|
|
allows you to stand erect, turn, and bend
|
back muscles
|
|
respiration, moves neck, arms, and trunk
|
chest muscle
|
|
supports internal organs and helps with respiration, and assist in eliminating waist
|
abdominal muscles
|
|
defecation and urination
|
perineal muscles
|
|
deltoid
|
moves arm at shoulder
|
|
pectoralis major
|
draws arm across chest, flexes arm
|
|
serratus anterior
|
rotates scapula and raises shoulders
|
|
intercostals
|
elevates and depresses the ribs
|
|
latissimus dorsi
|
brings arms down forcefully as in swimming, rowing, and climbing
|
|
diaphragm
|
contracts and relaxes for inhalation and exhalation
|
|
External and Internal oblique
|
compresses abdomen and rotates it laterally
|
|
transverse and rectus abdominis
|
compresses abdomen and rotates it laterally
|
|
levator ani
|
forms pelvic cavity and supports those organs
|
|
deep transverse perinei
|
forms floor of pelvic cavity (stop urinating)
|
|
Biceps brachii
|
flexes arm and helps supinate hand and forearm
|
|
triceps brachii
|
extends forearm and has 3 heads
|
|
brachialis
|
flexes forearm and strongest flexer at elbow
|
|
brachioradialis
|
flexes forearm and helps supinates hand and forearm
|
|
carpi muscles
|
controls hand movements
|
|
digitorum muscles
|
controls finger movements
|
|
pollicis muscles
|
thumb movements
|
|
Gluteus maximus, meduis, and minimus
|
help maintain errect posture and help rotate thighs inward and outward
|
|
sartorius
|
rotates thigh laterally and crosses legs
|
|
quadriceps femoris
|
extends leg
|
|
adductor (in legs)
|
presses thighs together or rotates laterally
|
|
hamstring
|
flexes leg and extends the thigh
|
|
gastrocnemius
|
extends the foot
|
|
tibialis anterior
|
flexes foot
|
|
peroneus longus
|
everts the ankle (rolls the ankle)
|
|
soleus (leg)
|
inverts the ankle
|
|
Flexor and Extensor digitorum
|
flexes and extends the toes
|
|
Tendon surgery is typically only done because of ____, which complicates the surgery.
|
trauma
|
|
Tendons ____ when partial/totally rupture, which complicates suturing.
|
frayed
|
|
Because tendons are slow to heal, the type of suturing and suturing materials is ____
|
important
|
|
Stainless steel, polyester, polypropylene, and ____ are types of suture material for suturing tendons
|
nylon
|
|
To suture a torn tendon the material has to be ___ with no elasticity
|
strong
|
|
Typically a ____ __ is the suturing technique of choice
|
figure 8
|
|
Surgeons try to ____ fibers when entering a cavity, they try not to ____ through muscle, but at times, it is necessary.
|
separate; cut
|
|
Blunt dissection is used to separate the fibers, either with their ____ or ____.
|
fingers or retractors
|
|
When the fibers of muscles have been separated, suturing is ____ necessary, because they will ____ approximate.
|
not; naturally
|
|
If suturing a muscles, ____ ____ and polypropylene are best.
|
stainless steal
|
|
tenosynovitis
|
inflammation of a tendon
|
|
atrophy
|
muscle weakness due to lack of use
|
|
cramps
|
painful involuntary twitching in a muscle
|
|
convulsions
|
abnormal uncoordinated contractions of muscles
|
|
fibrillation
|
muscle flexing at unexpected or undesired times (not enough K)
|
|
strain
|
when muscle fibers have been over streched or torn
|
|
myosistis
|
inlammed muscle tissue
|
|
fibromyositis
|
inflammed tendon
|
|
contusion
|
bruise
|
|
myalgia
|
muscle pain
|
|
muscular dystrophy
|
disease that leads to skeletal muscle atrophy
|
|
myasthenia gravis
|
autoimmune disease that attacks muscle cells
|
|
hernia
|
weakening in muscle wall that allows abdominal contents to come through
|
|
tetanus
|
inability of muscles to relax due to presents of a toxin
|
|
botulism
|
infection by an organism that releases a toxin that prevents muscle contraction
|
|
carpal tunnel syndrome
|
ligament that is cutting or putting pressure on medial nerve.
|