Shoulder Myology Flashcards Preview

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Flashcards in Shoulder Myology Deck (49)
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1

posterior axioappendicular muscles

trapezius
latissimus dorsi
levator
scapulae
rhomboids

2

name of the extrinsic shoulder muscles

posterior axioappendicular muscles

3

scapulohumeral muscles

deltoid
teres major
rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis)

4

name of intrinsic shoulder muscles

scapulohumeral muscles

5

anterior axioappendicular muscles

pectoralis major
pectoralis minor
serratus anterior
subclavius

6

extrinsic muscles

group of muscles located superficially on a given structure

7

intrinsic muscles

group of muscles located deep on a given structure in relation to more superficial muscles

8

synergists

muscles that assist the prime mover

9

glenohumeral flexors

anterior deltoid
pectoralis major
biceps brachii
coracobrachialis

10

glenohumeral extensors

posterior deltoid
latissimus dorsi
teres major
triceps brachii

11

glenohumeral horizontal abduction

posterior deltoid

12

glenohumeral horizontal adduction

anterior deltoid
pectoralis major

13

glenohumeral abduction

deltoid
supraspinatus

14

glenohumeral adduction

latissimus dorsi
teres major
infraspinatus
teres minor
pectoralis major
triceps brachii
coracobrachialis

15

glenohumeral lateral rotation (external rotation)

posterior deltoid
infraspinatus
teres minor

16

glenohumeral medial rotation (internal rotation)

anterior deltoid
latissmus dorsi
teres major
subscapularis
pectoralis major

17

scapulothoracic depression

lower trapezius
fixed serratus anterior
pectoralis minor

18

scapulothoracic elevation

upper trapezius
rhomboid major
rhomboid minor
unilateral levator scapula

19

scapulothoracic adduction (retraction)

mid trapezius
rhomboid major
rhomboid minor

20

scapulothoracic abduction (protraction)

fixed serratus anterior
pectoralis minor

21

scapulothoracic upward rotation

upper and lower trapezius
fixed serratus anterior

22

scapulothoracic downward rotation

rhomboid major
rhomboid minor
levator scapula
pectoralis minor

23

supraspinatus action

rotator cuff muscle that functions to assist in glenohumeral abduction

24

supraspinatus origin

supraspinous fossa of the scapula

25

supraspinatus insertion

greater tubercle of the humerus

26

supraspinatus innervation

C4, C5, C6

27

infraspinatus action

rotator cuff muscle that functions to laterally (externally) rotate the glenohumeral joint, assists in shoulder adduction, and stabilizes the head of the humerus in the glenoid cavity

28

infraspinatus origin

infraspinous fossa of the scapula

29

infraspinatus insertion

greater tubercle of the humerus

30

infraspinatus innervation

C4, 5, 6