Muscles Flashcards

1
Q

frontalis

A

forehead, elevates eyebrows and wrinkles forehead

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2
Q

orbicularis oculi

A

round muscle around the eye, opens and closes the eye

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3
Q

temporalis

A

over temples, elevates the mandible

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4
Q

occipitalis

A

muscle on the back of skull, covers the occipital bone. Helps with lengthening neck

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5
Q

zygomatic major

A

from zygomatic bone down into the cheek

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6
Q

risorious

A

“smiling muscle” pulls your cheeks back. at corner of lip

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7
Q

orbicularis oris

A

purse the lips, round muscle around mouth

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8
Q

buccinator

A

presses cheeks against the molars, squeeze teeth. underneath risorious

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9
Q

masseter

A

elevates mandible, helps with chewing. from jaw up under the temporal bone

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10
Q

sternocleidomastoid

A

long muscle, behind the ear. Helps with turning/tilting your head

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11
Q

levator scapulae

A

elevates the scapula, tilts toward the glenoid cavity.

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12
Q

trapezius

A

moves scap up, down, in, out. btwn neck and shoulders

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13
Q

platysma

A

stretches face/neck skin. from jaw down to clavicle

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14
Q

digastric

A

raises mandible/hyoid for speaking and swallowing, under the chin

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15
Q

sternohyoid

A

depresses hyoid after swallowing, inside neck along the esophagus

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16
Q

deltoid

A

3 parts: ANT medially rotates the arm; MIDDLE abducts arm POST extends/laterally rotates the arm (outside of the shoulder)

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17
Q

pectoralis major

A

flexes, adducts, medially rotates arm (big chest muscle)

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18
Q

pectoralis minor

A

depresses and stabilizes scapula (from shoulder to 3rd rib, under pec maj.)

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19
Q

serratus anterior

A

rotates scap up, pulls it anterior (lower than pec maj. mixed in with obliques)

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20
Q

biceps brachii

A

supinates flexed forearm (anterior side of humerous)

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21
Q

external intercostals

A

elevates ribs (more lateral than medial/ inside of ribs)

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22
Q

internal intercostals

A

elevates ribs (more medial than lateral/ inside of ribs)

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23
Q

latissimus dorsi

A

extends, adducts, and rotates humerus. (big back muscle under trap/ from armpit to hip)

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24
Q

supraspinatus

A

helps deltoid abduct arm, helps cuff rotate arm (top of rotator cuff/ located between acromion and clavicle)

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25
Q

infraspinatus

A

laterally rotates arm at shoulder (middle of rotator cuff/ located on scapula)

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26
Q

teres minor

A

laterally rotates arm at shoulder (bottom of cuff/ located below infraspinatus towards armpit) …above teres major

27
Q

teres major

A

extends arm and medially rotates shoulder (located below teres minor/ from bottom of scap to triceps)

28
Q

triceps brachii

A

extend forearm (posterior side of humerus)

29
Q

rhomboid major

A

retracts scap (located from spine to lower scap, below rhom. min.)

30
Q

rhomboid minor

A

retracts scap (located from spine to middle scap, above rhom man)

31
Q

linea alba

A

line btwn R and L sides of the abdominal cavity

32
Q

rectus abdominis

A

flexes trunk, compresses abdominal viscera ( forms 8 pack)

33
Q

external oblique

A

flexes and rotates trunk (outer most layer of obliques)

34
Q

internal oblique

A

flexes and rotates trunk (deeper than external, same location)

35
Q

transversus abdominis

A

flexes and compresses trunk, no rotation (deepest of all obliques)

36
Q

brachioradialis

A

flexes forearm at elbow, part of posterior forearm (located on thumb side, big, down into wrist, from anterior view)

37
Q

flexor carpi radialis

A

flexes hand at wrist and abducts (located in middle of forearm from anterior view)

38
Q

palmaris longus

A

flexes hand at wrist and tightens palm (located in anterior view, has tendon running down into palm)

39
Q

flexor carpi ulnaris

A

flexes hand at wrist and adducts (located on pinky side of forearm in both views)

40
Q

extensor digitorum

A

extends medial 4 digits, extends hand at joint (located in posterior view, runs down the middle of the forearm and hooks to 4 fingers)

41
Q

extensor carpi ulnaris

A

extends and adducts hand at wrist (located in posterior view, down middle of forearm and hooks to pinky side of wrist)

42
Q

pronator teres

A

pronates forearm and elbow flexors (located in anterior view directly below biceps)

43
Q

extensor carpi radialis longus

A

extends and abducts hand at wrist (located in posterior view, runs from elbow to thumb, very long)

44
Q

brachialis

A

thumb side of elbow, next to biceps

45
Q

gluteus medius

A

abducts and rotates the thigh at the hip (small, above the gluteus maximus)

46
Q

tensor fasciae latae

A

abducts thigh, keeps knee extended (anterior look of IT band)

47
Q

sartorius

A

flexes abducts and rotates hip (long skinny muscle that starts on outside of hip and runs to the inside of the knee)

48
Q

gracilis

A

helps rotate knee medially (runs the length of the thigh from groin to knee)

49
Q

adductor longus

A

adducts and rotates thigh at hip (groin inside of gracilis)

50
Q

rectus femoris

A

steadies the hip (big quad muscle, runs from hip to patella)

51
Q

vastus lateralis

A

extends leg t the knee (lateral side of rectus femoralis)

52
Q

vastus medialis

A

extends leg at the knee (medial side of rectus femoral is)

53
Q

gastrocnemius

A

calf

54
Q

soleus

A

plantar flexes foot at ankle (medial side of tibia)

55
Q

fibularis longus

A

plantar flexes and everts foot (lateral side of calf, easily knotted)

56
Q

tibialis anterior

A

dorsi flexes the foot (big muscle lateral to tibia)

57
Q

extensor digitorum longus

A

extends lateral four digits and dorsi flexes foot (long muscle along shin that leads into 4 toes)

58
Q

extensor hallucis brevis

A

extends toes (located on big toe side of foot)

59
Q

extensor digitorum brevis

A

extends toes (located on lateral side of foot)

60
Q

vastus intermedius

A

extends leg at knee (below rectus femoralis)

61
Q

adductor magnus

A

most powerful adductor, adducts thigh (from ischium to femur)

62
Q

gluetus maximus

A

abducts and rotates thigh and hip (biggest butt muscle)

63
Q

iliotibal tract

A

IT band - posterior view