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131 Cards in this Set
- Front
- Back
what is abduction?
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action that takes something away from the body
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what is adduction?
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bringing something towards the body
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what is circumduction?
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making circular motion
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what is depression?
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action that brings a body part down
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what is dorsiflexion?
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pulls toes up off the ground
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what is elevation?
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raising a body part up
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what is eversion?
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turning the bottom of the foot outwards
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what is extension?
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increase the angle between the bones
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what is flexion?
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decreasing the angle between the bones
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what is hyperextension?
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going beyond a 180 degree angle with the joint
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what is inversion?
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turning the foot inwards
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what is plantarflexion?
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pushing down on your toes
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what is pronation?
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rotation of the palm so it is facing down
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what is rotation?
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turning a body part on its axis
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what is supination?
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rotating the palm facing up
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what is a synergist?
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group of two or more muscles that do the same action
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what is a agonist?
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muscles that does most of the work in a group of synergists
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what is antagonists?
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muscles that do opposite action
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what is the origin?
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the end that does not move when the muscle contracts
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what is the insertion?
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the end that moves when the muscle contracts
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what muscle is this?
what is its action? |
frontalis
raises eyebrows |
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what muscle is being pointed out here?
what is its action? |
occipitalis
pulls scalp back |
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what muscle is this?
what is its action? what is it origin and insertion? |
temporalis
closes jaw temporal-mandible |
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what muscle is this?
what is its action? |
orbicularis oculi
closes eyes, squint |
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what muscle is this?
what is its action? |
orbicularis Oris
close lips, kissing |
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what muscle is this?
what is its action? |
zygomaticus
smiling |
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what muscle is this?
what is its action? |
depressor anguli oris
frown |
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what muscle is this?
what is its action? |
risorius
pull corners of mouth straight back towards ears |
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what muscle is this?
what is its action? what is its origin and insertion? |
masseter
closes jaw maxillary, zygomatic - mandible |
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what muscle is this?
what is its action? |
levator labii superioris
raises the upper lip |
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what muscle is this?
what is its action? |
depressor labii inferioris
pout |
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what muscle is this?
what is its action? |
buccinator
compress cheeks, pucker |
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what muscle is this?
what is its action? |
platysma
depress mandible, pout |
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what muscle is this?
what is its action? what is its origin and insertion? |
sternocleidomastoid
moves head laterally and down sternum & clavicle - mastoid process |
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what muscle is this?
what is its action? |
digastric
raises hyoid bone, opens mouth |
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what muscle is this?
what is its action? |
mylohyloid
raises hyoid bone |
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what muscle is this?
what is its action? |
sternohyoid
pulls hyoid bone down |
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what muscle is this?
what is its action? |
omohyoid
pulls hyoid bone down |
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what muscle is this?
what is its action? what is its origin and insertion? |
stylohyoid
raises hyoid and pulls posteriorly styloid process - hyoid bone |
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what muscle is this?
what is its action? what is its origin and insertion? |
trapezius
lift and adduct scapula, pulls head back occipital bone& vertebrae (C7-T12) - scapula & clavicle |
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what muscle is this?
what is its action? what is its origin and insertion? |
levator scapulae
raises scapula cervical vertebrae - scapula |
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what muscle is this?
what is its action? |
splenius capitis
extend and rotate head |
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what muscle is being pointed out here?
what is its action? what is its origin and insertion? |
rhomboid major
raises and adduct the scapula vertebrae - scapula |
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what muscle is being pointed out here?
what is its action? what is its origin and insertion? |
rhomboid minor
raises & adduct the scapula vertebrae - scapula |
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what muscle is being pointed out here?
what is its action? what is its origin and insertion? |
infraspinatus
rotates arm laterally scapula - humerus |
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what muscle is being pointed out here?
what is its action? what is its origin and insertion? |
teres major
adducts, medially rotates arm scapula - humerus |
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what muscle is being pointed out here?
what is its action? what is its origin and insertion? |
teres minor
rotates arm laterally scapula - humerus |
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what muscle is this?
what is its action? what is its origin and insertion? |
supraspinatous
abduct arm scapula -humerus |
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what muscle is this?
what is its action? what is its origin and insertion? |
Latissimus Dorsi
extends, adducts, medially rotates arm vertebrae, iliac crest, sacrum - humerus |
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what muscle is this?
what is its action? what is its origin and insertion? |
iliocostalis
extends spine erects posture iliac crest, sacrum - ribs |
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what muscle is this?
what is its action? what is its origin and insertion? |
longissimus
extends spine and erects posture lumbar vertebrae - thoracic vertebrae |
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what muscle is this?
what is its action? what is its origin and insertion? |
spinalis
extends spine, erects posture vertebrae - thoracic vertebrae |
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what muscle is this?
what is its action? what is its origin and insertion? |
pectoralis major
adducts & medially rotates humerus clavicle,sternum, costal cartilage - humerus |
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what muscle is this?
what is its action? what is its origin and insertion? |
pectoralis minor
pulls scapula forward and down 3rd through 5th ribs - scapula |
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what muscle is this?
what is its action? what is its origin and insertion? |
serratus anterior
pulls scapula away from spine 1st 8 or 9 ribs - scapula |
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what muscle is this?
what is its action? |
internal intercostals
pulls ribs in, exhalation |
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what muscle is this?
what is its action? |
external intercostals
pulls ribs out, inhalation |
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what muscle is this?
what is its action? |
external oblique
compresses abdomin |
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what muscle is this?
what is its action? what is its origin and insertion? |
rectus abdominus
compresses abdomin, flexes vertebral column public bone - cartilage of ribs and xiphoid |
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what muscle is this?
what is its action? |
internal oblique
compresses abdomen, flexes vertebral column |
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what muscle is this?
what is its action? |
transversus abdominis
compresses abdomen |
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what muscle is this?
what is its action? what is its origin and insertion? |
iliacus
flexes femur on trunk ilium-femur |
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what muscle is this?
what is its action? what is its origin and insertion? |
psoas major
flexes femur on trunk lumbar vertebrae - femur |
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what muscle is this?
what is its action? what is its origin and insertion? |
deltoid
abducts arm clavicle, scapula - humerus |
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what muscle is this?
what is its action? what is its origin and insertion? |
biceps brachii
flexes forearm scapula - radial tuberosity |
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what muscle is this?
what is its action? what is its origin and insertion? |
brachialis
flexes arm humerus - ulna |
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what muscle is this?
what is its action? what is its origin and insertion? |
coracobrachialis
flexes and adducts arm scapula - humerus |
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what muscle is this?
what is its action? what is its origin and insertion? |
triceps brachii
extends arm scapula & humerus - ulna |
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what muscle is this?
what is its action? what is its origin and insertion? |
brachioradialis
flexes forearm humerus - radius |
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what muscle is this?
what is its action? |
extensor carpi radialis longus
extends & abducts hand |
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what muscle is this?
what is its action? |
extensor carpi radialis brevis
extends & abducts hand |
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what muscle is this?
what is its action? |
extensor digitorum communis
extends distal and middle phalanges |
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what muscle is this?
what is its action? |
extensor carpi ulnaris
extends and adducts hand |
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what muscle is this?
what is its action? |
abductor policies longus
abducts and extends thumb |
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what muscle is this?
what is its action? |
extensor pollicis brevis
extends thumb |
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what muscle is this?
what is its action? |
supinator
supinates forearm |
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what muscle is this?
what is its action? |
extensor pollicis longus
extends thumb |
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what muscle is this?
what is its action? |
pronator quadratus
pronates forearm |
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what muscle is this?
what is its action? |
flexor carpi ulnaris
flexes & adducts hand |
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what muscle is this?
what is its action? |
palmeris longus
flexes hand |
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what muscle is this?
what is its action? |
flexor carpi radialis
flexes & abducts hand |
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what muscle is this?
what is its action? |
flexor digitorum superficialis
flexes fingers & hand |
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what muscle is this?
what is its action? |
pronator teres
pronates forearm |
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what muscle is this?
what is its action? |
flexor digitorum profundus
flexes fingers & hand |
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what muscle is this?
what is its action? |
flexor pollicis longus
flexes thumb |
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what muscle is this?
what is its action? what is its origin and insertion? |
gluten maximus
extends and laterally rotates femur iliac crest, sacrum, coccyx - femur, iliotibial tract |
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what muscle is this?
what is its action? what is its origin and insertion? |
gluteus medius
abducts & medially rotates femur illium - femur |
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what muscle is this?
what is its action? what is its origin and insertion? |
tensor fasciae latae
flexes & abducts femur iliac crest - tibia |
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what is the A band?
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darkest part of the sarcomere
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what is actin?
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main protein in thin filament
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what is elastic filament?
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in skeletal muscle what helps the muscle go back to its original shape
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what is the endomysium?
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inner most layer wraps around individual muscle cells
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what is the epimysium?
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outer most layer,wraps around a muscle cell
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what is a fascicle?
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bundle of muscle cells
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what is gap junctions?
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microscopic hollow tubes that connect on cardiac muscle cell to another
increases speed of impulse conduction |
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what is H zone?
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where it only has thick filament, not as dark as A band
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what is the I band?
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lighter part of striated muscle
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what are intercalated discs?
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thick connections between cardiac cells
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what is the M line?
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middle line of a sarcomere
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what are myofibrils?
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cylindrical structures in a muscle cell
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what is myosin?
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main protein in thick filament
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what is perimysium?
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layer that wraps around the fascicle
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what is sarcolemma?
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cell membrane of a muscle cell
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what is a sarcomere?
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structural and functional unit of striated muscle
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what are striations?
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alternating light and dark bands in cardiac and skeletal muscle
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what is thick filament?
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in myofibrils, made of myosin, what causes the muscle to contract
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what is thin filament?
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in myofibrils, made of actin, what causes the muscle to contract
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what is the Z line?
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Z structure at the ends of sarcomeres
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what is the zone of overlap?
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where thin and thick filament overlap
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what muscle is this?
what is its action? what is its origin and insertion? |
biceps femoris
flexes lower leg and extends thigh ischium & femur - fibula & tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
semitendinosus
flexes lower leg and extends thigh ischium - tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
semimembranosus
flexes lower leg and extends thigh ischium - tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
gracilis
adducts thigh, flexes leg pubis - tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
adductor longus
adducts and flexes thigh pubis - femur |
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what muscle is this?
what is its action? what is its origin and insertion? |
adductor magnus
adducts and rotates thigh pubis & ischium - femur |
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what muscle is this?
what is its action? what is its origin and insertion? |
rectus femoris
extends lower leg, flexes thigh at hip ilium - patella & tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
vastus lateralis
extends lower leg femur - patella & tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
vastus medialis
extends lower leg femur - patella & tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
vastus intermedius
extends lower leg femur - patella & tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
sartorius
flexes leg at knee ilium - tibia |
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what muscle is this?
what is its action? what is its origin and insertion? |
tibialis anterior
dorsiflexes foot tibia - 1st metatarsal & 1st cuneiform |
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what muscle is this?
what is its action? what is its origin and insertion? |
extensor digitorum longus
dorsiflexes foot extends toes tibia &fibula - phalanges 2-5 |
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what muscle is this?
what is its action? what is its origin and insertion? |
extensor hallucis longus
dorsiflexes foot, extends big toe fibula - phalange #1 |
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what muscle is this?
what is its action? what is its origin and insertion? |
gastrocnemius
plantar flexes foot femur - calcaneous |
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what muscle is this?
what is its action? what is its origin and insertion? |
soleus
plantar flexes foot tibia & fibula - calcaneous |
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what muscle is this?
what is its action? what is its origin and insertion |
tibialis posterior
plantar flexes foot tibia & fibula - metatarsal & cuneiform |
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what muscle is this?
what is its action? what is its origin and insertion? |
flexor digitorum longus
plantar flexes foot, flexes toes tibia - phalange 2-5 |
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what muscle is this?
what is its action? what is its origin and insertion? |
flexor hallucis longus
plantar flexes foot, flexes big toe fibula - phalange 1 |
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what muscle is this?
what is its action? what is its origin and insertion? |
fibularis longus
plantar flexes & everts foot fibula - 1st metatarsal & cuneiform |
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what muscle is this?
what is its action? what is its origin and insertion? |
fibularis brevis
plantar flexes & everts foot fibula - 5th metatarsal |
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what muscle is this?
what is its action? what is its origin and insertion? |
fibularis tertius
dorsiflexes foot & everts foot fibula - 5th metatarsal |