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Anatomy 2 > Muscle Actions (LAB) > Flashcards

Muscle Actions (LAB) Flashcards

1
Q

Buccinator

A

compresses cheek, moves food beneath teeth, suction for suckling

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2
Q

frontalis

A

wrinkles forehead, elevates eyebrow

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3
Q

levator sacpulae

A

elevates scapula

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4
Q

masseter

A

elevates and protracts mandible

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5
Q

occipitalis

A

moves scalp backward

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6
Q

orbicularis oculi

A

closes eye

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7
Q

orbicularis oris

A

closes mouth, purses lips, speech

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8
Q

platysma

A

depresses mandible and lower lip

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9
Q

semispinalis capitis

A

extends neck, rotates and tilts head

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10
Q

splenius capitis

A

turns head to side, extends neck

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11
Q

sternocleidomastoid

A

turns head to opposite side, bends neck laterally, if both sides contract together then it flexes the neck

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12
Q

temporalis

A

elevates and retracts mandible

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13
Q

trapezius

A

extends head and neck, elevates, depresses, and adducts scapula, also rotes scapula forward

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14
Q

zygomaticus major/minor

A

smile

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15
Q

deltoid

A

flexes and medially rotates arm, abducts arm, extends and laterally rotates arm

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16
Q

diaphragm

A

flattens to increase volume of thorax for inspiration

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17
Q

external abdominal oblique

A

compresses abdomen , laterally flexes and rotates vertebral column

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18
Q

external intercostals

A

elevates ribs for inspiration

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19
Q

internal intercostals

A

depresses ribs for expirationl

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20
Q

latissimus dorsi

A

extends, adducts, and rotates arm medially

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21
Q

pectoralis major

A

flexes, adducts, and rotates arm medially

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22
Q

pectoralis minor

A

depresses and protracts shoulder

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23
Q

rectus abdominus

A

flexes vertebral column, compresses abdomen, depresses rib cage and stabilizes pelvis

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24
Q

serratus anterior

A

rotates scapula upward and laterally

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25
Q

iliacus

A

flexes thigh at hip

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26
Q

internal abdominal oblique

A

compresses abdomen, laterally flexes and rotates vertebral column

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27
Q

psoas major

A

flexes thigh at hip, flexes vertebral column

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28
Q

transverse abdominus

A

compresses abdomen

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29
Q

erector spinae

A

maintain posture, extend vertebral column and head, laterally flex vertebral column and head

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30
Q

rhomboideus major and minor

A

downward rotation and adduction of scapula

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31
Q

biceps brachii

A

flexes forearm, supinates forearm

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32
Q

brachialis

A

flexes elbow

33
Q

coracobrachialis

A

adducts, medially rotates and flexes humerus and shoulder

34
Q

infraspinatus

A

lateral rotation of humers

35
Q

what are the 4 parts of the rotator cuff

A

infraspinatus
subscapularis
supraspinatus
teres minor

36
Q

subscapularis

A

medially rotates humerus

37
Q

supraspinatus

A

abducts humerus

38
Q

teres major

A

extends, adducts, and medially rotates humerus

39
Q

teres minor

A

lateral rotation and adduction of humerus

40
Q

trapezius

A

extends head and neck, elevates, depresses and adducts scapula., rotates scapula upward

41
Q

triceps brachii

A

extends forearm

42
Q

abductor pollicis longus

A

abducts and extends thumb

43
Q

extensor carpi radialis brevis

A

extends and abducts wrist (like a wave)

44
Q

extensor carpi radialis longus

A

extends and abducts wrist (wave)

45
Q

extensor carpi ulnaris

A

extends and abducts wrist (wave)

46
Q

extensor digitorum

A

extends phalanges and hand

47
Q

extensor pollicis brevis

A

extends thumb

48
Q

extensor pollicis longus

A

extends thumb

49
Q

flexor carpi radialis

A

flexes and abducts wrist (wave)

50
Q

flexor carpi ulnaris

A

flexes and adducts wrist (wave

51
Q

flexor digitorum profundus

A

flexes phalanges

52
Q

flexor digitorum superficialis

A

flexes phalanges

53
Q

flexor pollicis longus

A

flexes thumb

54
Q

palmaris longus

A

flexes wrist

55
Q

pronator teres

A

pronates forearm

56
Q

supinator

A

supinates forearm

57
Q

adductor longus

A

adducts, flexes, and laterally rotates thigh

58
Q

adductor magnus

A

adducts, flexes,a nd laterally rotates thigh

59
Q

biceps femoris

A

flexes knee, extend and lateral rotation of thigh at hip

60
Q

gluteus maximus

A

extends and rotates thigh laterally

61
Q

gluteus medius

A

abducts and rotates thigh medially

62
Q

gluteus minimus

A

adducts thigh and rotates thigh medially

63
Q

gracilus

A

adducts thigh, flexes lower leg

64
Q

rectus femoris

A

extends leg at knee and flexes thigh

65
Q

sartorius

A

flexes, abducts and laterally rotates thigh, flexes leg at knee

66
Q

semimembranosus

A

flexes knee, extend and medial rotation of thigh at hip

67
Q

tensor fasciae latae

A

flexes, abducts thigh

68
Q

vastus intermedius

A

extends leg at knee

69
Q

vastus lateralis

A

extends leg at knee

70
Q

vastus medialis

A

extneds leg at knee

71
Q

extensor digitorum

A

extends toes, dorsiflexes foot at ankel, eversion of foot

72
Q

fibularis brevis

A

eversion of foot

73
Q

fibularis longus

A

eversion, plantar flexion of foot

74
Q

flexor digitorum longus

A

flexes toes, plantar flextion

75
Q

flexor hallucis longus

A

plantar flexion and flexes digit 1

76
Q

gastrocnemius

A

plantar flexes foot, flexes knee

77
Q

soleus

A

plantar flexes foott

78
Q

tibialis anterior

A

dosiflexes ankle, inverts foot

79
Q

tibialis posterior

A

plantar flexion and inversion

Anatomy 2 (13 decks)

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