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Anatomy & Physiology 1 > Muscle ID, etc. > Flashcards

Muscle ID, etc. Flashcards

1
Q

What’s the action of the frontalis?

A

elevates the eyebrows

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2
Q

What’s the action of the temporalis?

A

closes jaws by elevating mandible

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3
Q

What’s the action of the orbicularis oculi?

A

contracts individually around the eye (blinking, winking, squinting)

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4
Q

What’s the action of the orbicularis oris?

A

closes, purses, and protrudes the lips

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5
Q

What’s the action of the masseter?

A

agonist in elevating the mandible

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6
Q

What’s the action of the risorius?

A

draws angle of the mouth laterally

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7
Q

What’s the action of the modiolus?

A

point of muscle origins and insertions

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8
Q

What’s the action of the buccinator?

A

retraction of the mandible

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9
Q

What’s the action of the digastric?

A

open mouth; depress mandible; elevate hyoid

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10
Q

What’s the action of the stylohyoid?

A

elevates and retracts hyoid

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11
Q

What’s the action of the mylohyoid?

A

elevates hyoid and floor of mouth

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12
Q

What’s the action of the platysma?

A

depresses mandible; pulls down lower lip; tenses neck skin

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13
Q

What’s the action of the sternohyoid?

A

depresses hyoid

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14
Q

What’s the action of the sternocleidomastoid?

A

head and neck flexion; rotation of the head

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15
Q

Identify this muscle.

A

Frontalis

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16
Q

Identify this muscle.

A

temporalis

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17
Q

Identify this muscle.

A

orbicularis oculi

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18
Q

Identify this muscle.

A

orbicularis oris

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19
Q

Identify this muscle.

A

masseter

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20
Q

Identify this muscle.

A

risorius

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21
Q

Identify this muscle.

A

buccinator

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22
Q

Identify this muscle.

A

digastric

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23
Q

Identify this muscle.

A

stylohyoid

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24
Q

Identify this muscle.

A

mylohyoid

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25
Q

Identify this muscle.

A

platysma

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26
Q

Identify this muscle.

A

sternohyoid

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27
Q

Identify this muscle.

A

sternocleidomastoid

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28
Q

What’s the action of the scalenes?

A

ipsilateral flexion or contralateral rotation of the head; elvates ribs

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29
Q

What’s the action of the trapezius?

A

laterally flexes neck; elevate, depress, retract, and laterally rotate scapula

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30
Q

What’s the action of the pectoralis major?

A

agonist in flexion, adduction and medial rotation of the humerus; synergist in forced inspiration

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31
Q

What’s the action of the pectoralis minor?

A

syngergist in scapula protraction, abduction and raising of arm

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32
Q

What’s the action of the serratus anterior?

A

prime mover to protract scapula, abduction and raising of arm (punching); “boxer’s muscle”

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33
Q

What’s the action of the supraspinatus?

A

abduction of arm; stabilizes shoulder

34
Q

What’s the action of the infraspinatus?

A

rotates humerus laterally; stabilzes shoulder

35
Q

What’s the action of the teres minor?

A

rotates humerus laterally; stabilzes shoulder

36
Q

What’s the action of the subscapularis?

A

rotates humerus medially; stabilizes shoulder

37
Q

Which four muscles comprise the rotator cuff (RTC)?

A

supraspinatus, infraspinatus, teres minor, subscapularis

38
Q

What’s the action of the deltoid?

A

agonist in arm abduction, flexion and medial rotation of humerus

39
Q

What’s the action of the teres major?

A

medially rotates and adducts the humerus; synergist of latissumus dorsi

40
Q

What’s the action of the coracobrachialis?

A

flexes and medially rotates the arm

41
Q

What’s the action of the latissimus dorsi?

A

adducts and extends arm; depresses scapula

42
Q

Identify this muscle.

A

Scalenes

43
Q

Identify this muscle.

A

Trapezius

44
Q

Identify this muscle.

A

Pectoralis major

45
Q

Identify this muscle.

A

Pectoralis minor

46
Q

Identify this muscle.

A

Serratus anterior

47
Q

Identify this muscle.

A

Supraspinatus

48
Q

Identify this muscle.

A

Infraspinatus

49
Q

Identify this muscle.

A

Teres minor

50
Q

Identify this muscle.

A

Subscapularis

51
Q

Identify this muscle.

A

Deltoid

52
Q

Identify this muscle.

A

Teres major

53
Q

Identify this muscle (3).

A

Coracobrachialis

54
Q

Identify this muscle.

A

latissimus dorsi

55
Q

What’s the action of the external intercostals?

A

elevates rib cage during inhalation

56
Q

What’s the action of the internal intercostals?

A

elevates rib cage during inhalation; depresses rib cage during forced exhalation

57
Q

What’s the action of the diaphragm?

A

agonist of inspiration; flattens to increase thoracic volume

58
Q

What’s the action of the external oblique?

A

aids in flexion of the vertebral column; trunk rotation

59
Q

What’s the action of the internal oblique?

A

aids in flexion of the vertebral column; trunk rotation

60
Q

What’s the action of the transverse abdominus?

A

compresses abdomen

61
Q

What’s the action of the rectus abdominus?

A

flexes lumbar region

62
Q

What’s the action of the linea alba?

A

separates rectus abdominus; insertion point of transverse abdominus

63
Q

What’s the action of the brachialis?

A

agonist of forearm flexion

64
Q

What’s the action of the biceps brachii?

A

synergist of elbow flexion; supination of forearm

65
Q

What’s the action of the triceps brachii?

A

agonist in forearm extension

66
Q

What’s the action of the pronator teres?

A

pronates forearm

67
Q

What’s the action of the brachioradialis?

A

synergist in forearm flexion

68
Q

Identify this muscle.

A

external intercostals

69
Q

Identify this muscle.

A

internal intercostals

70
Q

Identify this muscle.

A

diaphragm

71
Q

Identify this muscle.

A

external oblique

72
Q

Identify this muscle.

A

internal oblique

73
Q

Identify this muscle.

A

transverse abdominus

74
Q

Identify this muscle.

A

rectus abdominus

75
Q

Identify this muscle.

A

linea alba

76
Q

Identify this muscle.

A

brachialis

77
Q

Identify this muscle.

A

biceps brachii

78
Q

Identify this muscle.

A

triceps brachii

79
Q

Identify this muscle.

A

pronator teres

80
Q

Identify this muscle.

A

brachioradialis

Anatomy & Physiology 1 (7 decks)

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