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Human Anatomy Myology > Shoulder Myology > Flashcards

Shoulder Myology Flashcards

1
Q

pectoralis major origin

A

medial half of clavicle, anterior sternum, superior 6 costals

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2
Q

pectoralis major insertion

A

lateral lip of intertubercular groove

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3
Q

pectoralis major action

A

horizontal adduction, medial rotation

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4
Q

pectoralis major nerve

A

medial and lateral pectoral nerve

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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 action

A

scapular protraction and depression

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8
Q

pectoralis minor nerve

A

medial pectoral nerve

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9
Q

subclavius origin

A

junction of first rib and costal cartilage

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10
Q

subclavius insertion

A

inferior surface of clavicle

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11
Q

subclavius action

A

anchors and depresses clavicle

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12
Q

subclavius nerve

A

nerve to subclavius

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13
Q

serratus anterior origin

A

external surface of lateral ribs 1-8

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14
Q

serratus anterior insertion

A

anterior surface of medial border of scapula

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15
Q

serratus anterior action

A

scapular protraction, prevents scapular winging

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16
Q

serratus anterior nerve

A

long thoracic nerve

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17
Q

trapezius origin

A

external occipital protuberance, spinous processes C7-T12

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18
Q

trapezius insertion

A

distal clavicle, AC joint, spine of scapula

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19
Q

upper trapezius action

A

elevates and upwardly rotates scapula

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20
Q

middle trapezius action

A

retracts scapula

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21
Q

lower trapezius action

A

depresses and upwardly rotates scapula

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22
Q

trapezius nerve

A

CN 11 (spinal accessory nerve)

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23
Q

latissimus dorsi origin

A

spinous processes T6-T12, iliac crest, thoracolumbar fascia

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24
Q

latissimus dorsi insertion

A

floor of intertubercular groove

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25
Q

latissimus dorsi action

A

extension, adduction, internal rotation

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26
Q

latissimus dorsi nerve

A

thoracodorsal nerve

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27
Q

levator scapulae origin

A

transverse processes of C1-C4

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28
Q

levator scapulae insertion

A

superior part of medial border of scapula

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29
Q

levator scapulae action

A

elevates and downwardly rotates scapula

30
Q

levator scapulae nerve

A

dorsal scapular nerve

31
Q

rhomboid major origin

A

T2-T5 spinous processes

32
Q

rhomboid minor origin

A

C7-T1 spinous processes

33
Q

rhomboids insertion

A

medial border of scapula below spine

34
Q

rhomboids action

A

scapular retraction, downward rotation

35
Q

rhomboids nerve

A

dorsal scapular nerve

36
Q

deltoid origin

A

distal clavicle, AC joint, spine of the scapula

37
Q

deltoid insertion

A

deltoid tuberosity

38
Q

deltoid action

A

abduction of shoulder

39
Q

deltoid nerve

A

axillary nerve

40
Q

teres major origin

A

dorsal surface of inferior angle of scapula

41
Q

teres major insertion

A

medial lip of intertubercular groove

42
Q

teres major action

A

internal rotation and adduction

43
Q

teres major nerve

A

lower subscapular nerve

44
Q

rotator cuff muscles

A

supraspinatus, infraspinatus, teres minor, subscapularis

45
Q

supraspinatus origin

A

supraspinous fossa

46
Q

supraspinatus insertion

A

superior facet of greater tuberosity

47
Q

supraspinatus action

A

abduction of shoulder in first 15 deg., compresses glenohumeral joint

48
Q

supraspinatus nerve

A

suprascapular nerve

49
Q

infraspinatus origin

A

infraspinous fossa

50
Q

infraspinatus insertion

A

middle facet of greater tuberosity

51
Q

infraspinatus action

A

external rotation of shoulder

52
Q

infraspinatus nerve

A

suprascapular nerve

53
Q

teres minor origin

A

superior part of lateral scapular border

54
Q

teres minor insertion

A

inferior facet of greater tuberosity

55
Q

teres minor action

A

external rotation of shoulder

56
Q

teres minor nerve

A

axillary nerve

57
Q

subscapularis origin

A

subscapular fossa

58
Q

subscapularis insertion

A

lesser tuberosity

59
Q

subscapularis action

A

internal rotation of shoulder

60
Q

subscapularis nerve

A

upper and lower subscapular nerves

61
Q

coracobrachialis origin

A

coracoid process

62
Q

coracobrachialis insertion

A

middle 1/3 of medial humerus

63
Q

coracobrachialis action

A

shoulder flexion, adduction

64
Q

coracobrachialis nerve

A

musculocutaneous nerve

65
Q

biceps brachii origin

A

long head: supraglenoid tubercle
short head: coracoid process

66
Q

biceps brachii insertion

A

radial tuberosity and bicipital aponeurosis

67
Q

biceps brachii action

A

elbow and shoulder flexion

68
Q

biceps brachii nerve

A

musculocutaneous nerve

69
Q

triceps brachii origin

A

long head: infraglenoid tubercle
lateral and medial heads: shaft of humerus

70
Q

triceps brachii insertion

A

olecranon process

71
Q

triceps brachii action

A

elbow extension, shoulder extension and adduction

72
Q

triceps brachii nerve

A

radial nerve

Human Anatomy Myology (5 decks)

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