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Anatomy Exam 1 > Muscles (OINA) > Flashcards

Muscles (OINA) Flashcards

1
Q

pectoralis major origin

A

clavicle, sternum, ribs 1-6, aponeurosis of the external oblique

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2
Q

pectoralis major insertion

A

crest of the greater tubercle of the humerus

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3
Q

pectoralis major nerve

A

medial and lateral pectoral

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4
Q

pectoralis major action

A

adduct, flex, extend (from flex), and medially rotate the arm

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5
Q

pectoralis minor origin

A

ribs 3-5

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6
Q

pectoralis minor insertion

A

coracoid process

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7
Q

pectoralis minor nerve

A

medial pectoral

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8
Q

pectoralis minor action

A

depress scapula, elevate ribs

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9
Q

subclavius origin

A

first rib

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10
Q

subclavius insertion

A

inferior acromial end of the clavicle

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11
Q

subclavius nerve

A

subclavian

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12
Q

subclavius action

A

flexes clavicle, elevates first rib

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13
Q

serratus anterior origin

A

ribs 1-8 (sometimes 9)

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14
Q

serratus anterior insertion

A

deep medial border of the scapula

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15
Q

serratus anterior nerve

A

long thoracic

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16
Q

serratus anterior action

A

rotate and protract scapula, elevate ribs

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17
Q

supraspinatus origin

A

supraspinous fossa

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18
Q

supraspinatus insertion

A

greater tubercle of the humerus

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19
Q

supraspinatus nerve

A

suprascapular

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20
Q

supraspinatus action

A

abduct the arm

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21
Q

infraspinatus origin

A

infraspinous fossa

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22
Q

infraspinatus insertion

A

greater tubercle of the humerus

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23
Q

infraspinatus nerve

A

suprascapular

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24
Q

infraspinatus action

A

extend and laterally rotate the arm

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25
Q

teres minor origin

A

mid 1/3 of medial border of scapula

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26
Q

teres minor insertion

A

greater tubercle of the humerus

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27
Q

teres minor nerve

A

axially

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28
Q

teres minor action

A

adducts, extends, laterally rotates arm

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29
Q

subscapularis origin

A

subscapular fossa

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30
Q

subscapularis insertion

A

lesser tubercle of the humerus

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31
Q

subscapularis nerve

A

subscapular (lower and upper)

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32
Q

subscapularis action

A

medially rotates the arm

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33
Q

latissimus dorsi origin

A

Spinous processes of T7-12 and L1-5, median sacral ridge, iliac crest

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34
Q

latissimus dorsi insertion

A

crest of the lesser tubercle of the humerus

35
Q

latissimus dorsi nerve

A

thoracodorsal

36
Q

latissimus dorsi action

A

adducts, extends, medially rotates

37
Q

teres major origin

A

inferior 1/3 of the medial border of the scapula

38
Q

teres major insertion

A

crest of the lesser tubercle of the humerus

39
Q

teres major nerve

A

lower subscapular

40
Q

teres major action

A

adducts, extends, medially rotates arm

41
Q

deltoid origin

A

lateral clavicle, acromion process, spine of scapula

42
Q

deltoid insertion

A

deltoid tuberosity (humerus)

43
Q

deltoid nerve

A

axially

44
Q

deltoid action

A

anterior: flex, medially rotate arm
middle: abduct arm
posterior: extend, laterally rotate arm

45
Q

coracobrachialis origin

A

coracoid process

46
Q

coracobrachialis insertion

A

mid medial border of humerus

47
Q

coracobrachialis nerve

A

musculocutaneous

48
Q

coracobrachialis action

A

adducts and flexes arm

49
Q

trapezius origin

A

occipital protruberance to T12, nuchal ligament

50
Q

trapezius insertion

A

superior margin of the spine of the scapula and clavicle

51
Q

trapezius nerve

A

accessory and cervical plexus

52
Q

trapezius action

A

rotate scapula, abducts and extends head

53
Q

levator scapulae origin

A

transverse processes of C1-4

54
Q

levator scapulae insertion

A

superior angle of scapula

55
Q

levator scapulae nerve

A

dorsal scapular

56
Q

levator scapulae action

A

elevates scapula

57
Q

rhomboideus minor origin

A

C7, T1

58
Q

rhomboideus minor insertion

A

medial border of scapula at the spine

59
Q

rhomboideus minor nerve

A

dorsal scapular

60
Q

rhomboideus minor action

A

elevates and retracts scapula

61
Q

rhomboideus major origin

A

T1-4

62
Q

rhomboideus major insertion

A

medial border of scapular inferior to the spine

63
Q

rhomboideus major nerve

A

dorsal scapular

64
Q

rhomboideus major action

A

retracts scapula

65
Q

biceps brachii origin

A

long head: supraglenoid fossa

short head: acromion process

66
Q

biceps brachii insertion

A

radial tuberosity (1’), bicepitol aponeurosis

67
Q

biceps brachii nerve

A

musculocutaneous

68
Q

biceps brachii action

A

adduct and flex arm

flex and supinate forearm

69
Q

brachialis origin

A

inferior 2/3 of anterior surface of humerus

70
Q

brachialis insertion

A

coronoid process

71
Q

brachialis nerve

A

musculocutaneous

72
Q

brachialis action

A

flex forearm

73
Q

triceps brachii origin

A

long: lateral border of scapula
lateral: posterior surface of humerus
medial: posterior surface of humerus

74
Q

triceps brachii insertion

A

olecranon process

75
Q

triceps brachii nerve

A

axially

76
Q

triceps brachii action

A 
extends forearm (lateral, medial)
extends and adducts arm (long)
77
Q

external/internal/innermost intercostals origin

A

superior from highest rib

78
Q

external/internal/innermost intercostals insertion

A

to the next lowest rib

79
Q

external/internal/innermost intercostals nerve

A

intercostal

80
Q

external/internal/innermost intercostals action

A

inspiration - elevate ribs (external)

expiration - depress ribs (internal)

81
Q

transverse thoracis origin

A

xiphoid process, inferior of sternum

82
Q

transverse thoracis insertion

A

costal cartilage of ribs 2-6

83
Q

transverse thoracis nerve

A

intercostal

84
Q

transverse thoracis action

A

expiration (narroes chest)

Anatomy Exam 1 (5 decks)

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