Exam 3 Flashcards

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1
Q

frontalis

A

raises eyebrows

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2
Q

occipitalis

A

pulls scalp posteriorly

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3
Q

obicularis oculi

A

closes eye

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4
Q

obicularis oris

A

closes and protrudes lips

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5
Q

buccinator

A

manipulate food during chewing
expels air through lips

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6
Q

zygomaticus major

A

pulls angle of mouth superiorly
pulls angle of mouth laterally
smiling

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7
Q

zygomaticus minor

A

raises lateral portion of upper lip (smiling)

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8
Q

platysma

A

depresses lower lip
depresses mandible
tenses skin of neck

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9
Q

masseter

A

elevates mandible

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10
Q

temporalis

A

elevates and retracts mandible

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11
Q

digastric

A

depresses mandible
fixator of the hyoid bone during swallowing

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12
Q

myohyloid

A

elevates hyoid bone and floor of mouth assisting tongue to push food toward the pharynx

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13
Q

sternohyoid

A

depresses hyoid bone and larynx

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14
Q

sternocleidomastoid

A

bilateral action: flexes head (chin to chest)
unilateral action: flex and rotate the head to oppisite side

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15
Q

scalenes (anterior, posterior, middle)

A

bilateral: flexes head when 1st rib is fixed, elevates rib cage with vertebral column (when neck is fixed)

unilateral: rotate head laterally

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16
Q

external oblique and internal oblique

A

bilaterally they flex the trunk

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17
Q

transversus abdominus

A

compresses abdominal contents

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18
Q

rectus adbominus

A

flexes the trunk

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19
Q

pectoralis major

A

flexes and adducts the arms
rotates arm medially

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20
Q

pectoralis minor

A

protracts and depresses scapula

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21
Q

serratus anterior

A

protracts scapula
assists in upward rotation of scapula

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22
Q

diaphragm

A

flattens to lower floor of thoracic cavity, increasing volume

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23
Q

external intercostals

A

elevates rib cage

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24
Q

trapezius

A

extends the head
retracts scapula
depresses scapula
rotates scapula upward

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25
Q

deltoid

A

abducts the arm
secondarily flexes and extends arm

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26
Q

latissimus dorsi

A

adducts and extends the arm
rotates arm medially

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27
Q

what muscles comprise the rotator cuff

A

supraspinatus
infraspinatus
subscapularis
teres minor

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28
Q

supraspinatus

A

assists abduction of arm
holds the humerus and stabilizes the shoulder joint

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29
Q

infraspinatus

A

rotates arm laterally
stabilizes shoulder joint

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30
Q

subscapularis

A

adducts and rotates arm medially
stabilizes shoulder joint

31
Q

teres minor

A

rotates arm laterally
stabilizes shoulder joint

32
Q

levator scapulae

A

elevates scapula

33
Q

rhomboid major and minor

A

retracts scapula

34
Q

teres major

A

adducts and extends the arm
rotates arm medially

35
Q

splenius capitis

A

extends the head
rotates the head to same side

36
Q

biceps brachii

A

flexes elbow
supinates forearm

37
Q

brachialis

A

flexes elbow

38
Q

triceps brachii

A

extends elbow

39
Q

pronator teres

A

pronates forearm

40
Q

flexor carpi radialis

A

flexes and abducts wrist

41
Q

palmaris longus

A

flexes wrist
tenses skin and fascia of palm

42
Q

flexor carpi ulnaris

A

flexes and adducts wrist

43
Q

extensor carpi radialis longus

A

extends and abducts wrist

44
Q

extensor carpi radialis brevis

A

extends and abducts wrist

45
Q

extensor digitorum

A

extends wrist
extends fingers

46
Q

extensor digiti minimi

A

extends little finger

47
Q

extensor carpi ulnaris

A

extends and adducts wrist

48
Q

brachioradialis

A

flexes elbow (forearm in mid-positon between supine and prone)

49
Q

iliopsoas

A

flexes hip
laterally bends vertebral column

50
Q

sartorius

A

flexes knee
flexes, abducts, laterally rotates hip

51
Q

quadriceps femoris

A

rectus femoris
vastus muscles

52
Q

rectus femoris

A

flexes hip and extends knee

53
Q

vastus muscle

A

extend knee; stabilize knee

54
Q

pectineus

A

adducts, medially rotates and flexes hip

55
Q

adductor longus

A

adducts hip
medially rotates hip
flexes hip

56
Q

adductor magnus

A

adducts hip
medially rotates hip
flexes hip

57
Q

adductor brevis

A

adducts hip
medially rotates hip
flexes hip

58
Q

gracilis

A

adducts hip
medially rotates and flexes hip
flexes knee

59
Q

biceps femoris

A

extends hip
flexes knee

60
Q

semitendinosus

A

extends hip
flexes knee

61
Q

semimembranosus

A

extends hip
flexes knee

62
Q

gluteus maximus

A

extends and laterally rotates hip

63
Q

gluteus medius

A

abducts and medially rotates hip
stabilizes pelvis when walking

64
Q

tesnor fascia latae

A

abducts and medially rotates hip

65
Q

tibialis anterior

A

dorsiflexion
inversion

66
Q

extensor hallicus longus

A

extend great toe
inversion

67
Q

extensor digitorum longus

A

extends digits 2-5
inversion

68
Q

fibularis longus

A

eversion
weak plantarflexion

69
Q

fibularis brevis

A

eversion
weak plantarflexion

70
Q

gastrocnemius

A

flex knee
plantarflexion

71
Q

soleus

A

plantarflexion

72
Q

tibialis posterior

A

plantarflexion
inversion

73
Q

flexor hallicus longus

A

flexes great toe

74
Q

flexor digitorum longus

A

flexes digits 2-5