Shoulder Girdle Muscles Flashcards

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created 7 weeks ago by coop_25
Flashcards for the origin, insertion, action, and innervation of the shoulder girdle muscles.
Subjects:
anatomy & physiology, anatomy and physiology 1
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1

Pectoralis Major - Origin

Sternum and clavicle

2

Pectoralis Major - Insertion

Bicipital groove of humerus

3

Pectoralis Major - Action

Adduction & medial rotation of humerus

4

Pectoralis Major - Innervation

Lateral pectoral nerve

5

Pectoralis Minor - Origin

Ribs 3-5

6

Pectoralis Minor - Insertion

Coracoid process

7

Pectoralis Minor - Action

Protraction, depression, & downward rotation of the scapula

8

Pectoralis Minor - Innervation

Medial pectoral nerve

9

Supraspinatus - Origin

Supraspinous fossa

10

Supraspinatus - Insertion

Greater tubercle of humerus

11

Supraspinatus - Action

Abduction to humerus

12

Supraspinatus - Innervation

Suprascapular nerve

13

Infraspinatus - Origin

Infraspinous fossa

14

Infraspinatus - Insertion

Greater tubercle of humerus

15

Infraspinatus - Action

Lateral rotation & extension of humerus

16

Infraspinatus - Innervation

Suprascapular nerve

17

Teres Major - Origin

Inferior angle of scapula

18

Teres Major - Insertion

Bicipital groove of humerus

19

Teres Major - Action

Extension, medial rotation, & adduction of humerus

20

Teres Major - Innervation

Subscapular nerve

21

Teres Minor - Origin

Lateral border of scapula

22

Teres Minor - Insertion

Greater tubercle of humerus

23

Teres Minor - Action

Lateral rotation & extension of humerus

24

Teres Minor - Innervation

Axillary nerve

25

Subscapularis - Origin

Subscapular fossa

26

Subscapularis - Insertion

Lesser tubercle of humerus

27

Subscapularis - Action

Medial rotation & adduction of humerus

28

Subscapularis - Innervation

Subscapular nerve