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musculoskeletal anatomy > shoulder > Flashcards

shoulder Flashcards

1
Q

scapula movement usually occurs with

A

humerus movement

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2
Q

humeral flexion and abduction require scapula

A

elevation, rotation upward, abduction

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3
Q

humeral adduction and extension results in scapular

A

depression, rotation downward, adduction

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4
Q

scapula abduction occurs with humeral

A

internal rotation, horizontal adduction

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5
Q

scapula adduction occurs with humeral

A

external rotation, horizontal abduction

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6
Q

why is the shoulder joint usually injured

A

small cavity, large humeral head

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7
Q

glenohumeral joint type

A

ball and socket

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8
Q

how does soft tissue alter glenohumeral joint function

A

loose capsule

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9
Q

glenohumeral joint stability comes from

A

muscles, rotator cuffs

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10
Q

rotator cuff muscles

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

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11
Q

rotator cuff purpose

A

stability

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12
Q

ligaments are thickenings of

A

joint capsule

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13
Q

shoulder joint abduction=shoulder girdle ____

A

upward rotation

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14
Q

shoulder joint adduction=shoulder girdle ____

A

downward rotation

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15
Q

shoulder joint flexion=shoulder girdle ____

A

elevation/upward rotation

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16
Q

shoulder joint extension=shoulder girdle ___

A

depression/downward rotation

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17
Q

shoulder joint horizontal adduction=shoulder girdle ____

A

abduction

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18
Q

shoulder joint horizontal abduction=shoulder girdle ____

A

adduction

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19
Q

shoulder girdle influence on GH joint: abduction is 180 degrees:
60 ____
25 ____
95____

A

scapula upward rotation
scapula elevation
glenohumeral abduction

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20
Q

ab/adduction plane and axis

A

frontal, AP

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21
Q

flexion/extension plane and axis

A

sagittal, ML

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22
Q

glenohumeral horizontal ab/adduction plane and axis

A

transverse, longitudinal

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23
Q

glenohumeral external/internal rotation plane and axis

A

transverse, longitudinal

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24
Q

glenohumeral flexion __ (< or >)extension

A

>

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25
Q

glenohumeral abduction __ (< or >) adduction

A

ab

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26
Q

glenohumeral horizontal abduction __ (< or >) horizontal adduction

A

<

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27
Q

glenohumeral internal rotation __ (< or >) external

A

the same

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28
Q

glenohumeral outward rotation __ (< or >) inward

A

the same

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29
Q

intrinsic muscles

A

close to joint

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30
Q

glenohumeral intrinsic muscles

A

rotator cuffs

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31
Q

lateral pectoral and medial pectoral nerves innervate

A

pecs

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32
Q

thoracodorsal nerve innervate

A

lats

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33
Q

axillary nerve innervates

A

deltoids, teres minor, lateral tricep head

34
Q

upper sub scapular nerve innervate

A

subscapularis

35
Q

lower sub scapular nerve innervate

A

subscapularis, teres minor

36
Q

suprascapular nerve innervate

A

supraspinatus

37
Q

musculoteneous nerve innervate

A

biceps brachii, coracobrachialis, brachialis

38
Q

deltoid origin

A

clavicle, acrominon, scapula

39
Q

deltoid insertion

A

deltoid tuberosity

40
Q

deltoid overall function

A

abduction

41
Q

delt anterior action (4)

A

abduction, flexion, horizontal adduction, internal rotation

42
Q

delt middle action

A

abduction

43
Q

delt posterior action (4)

A

abduction, extension, horizontal abduction, external rotation

44
Q

pec major origin

A

sternum, clavicle

45
Q

pec major insertion

A

inter tubercular groove humerus

46
Q

pec major upper fiber action

A

internal rotation, horizontal adduction

47
Q

pec major lower fiber action

A

internal rotation, horizontal adduction

48
Q

pec major will abduct the arm when

A

it is already abducted 90 degrees

49
Q

lats origin

A

ilium, sacrum, spinous processes

50
Q

lats insertion

A

inter tubercular groove humerus

51
Q

lats action

A

adduct, extend, internal rotate, horizontal abduction

52
Q

teres major origin

A

lateral scap

53
Q

teres major insertion

A

inter tubercular groove

54
Q

teres major action

A

extension, internal rotation, adduction

55
Q

coracobrachialis origin

A

coracoid process

56
Q

coracobrachialis insertion

A

medial humerus

57
Q

coracobrachialis action

A

flexion

58
Q

rotator cuff impingement

A

supraspinatus tendon
subacrominal impingement

59
Q

subscapularis origin

A

subscapular fossa

60
Q

subscapularis insertion

A

lesser tubercle humerus

61
Q

subscapularis action

A

internal rotation, stabilization

62
Q

supraspinatus origin

A

supraspinatus fossa

63
Q

supraspinatus insertion

A

greater tubercle humerus

64
Q

supraspinatus action

A

abduction, stabilization

65
Q

supraspinatus functions best in the plane of the

A

scapula

66
Q

plane of scapula

A

scaption

67
Q

scaption

A

most natural position “y” (between “t” and “I”)

68
Q

infraspinatus origin

A

posterior scapula

69
Q

infraspinatus insertion

A

greater tubercle

70
Q

infraspinatus action

A

external rotation, stabilization

71
Q

teres minor origin

A

posterior lateral scapula

72
Q

teres minor insertion

A

greater tubercle

73
Q

teres minor action

A

external rotation, stabilization

74
Q

glenohumeral flexion agonists

A

anterior delt, upper pec

75
Q

glenohumeral extension agonists

A

teres major, lats, lower pecs

76
Q

glenohumeral abduction agonists

A

supraspinatus, delts, upper pec after 90 degree

77
Q

glenohumeral adduction agonists

A

lats, teres minor, pec

78
Q

glenohumeral internal rotation agonists

A

lats, teres major, pec

79
Q

glenohumeral external rotation agonists

A

infraspinatus, teres minor

80
Q

glenohumeral horizontal abduction agonists

A

posterior delt, infraspinatus, teres minor

81
Q

glenohumeral horizontal adduction agonists

A

anterior delt, pec, corocobrachial

musculoskeletal anatomy (13 decks)

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