Muscles: Shoulder Flashcards Preview

Ace Ess: Anatomy > Muscles: Shoulder > Flashcards

Flashcards in Muscles: Shoulder Deck (12):
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Major muscles that act at the shoulder •5

Pectoralis major, deltoid, latissimus dorsi, rotator cuff, and the teres major

1

Rotator cuff (SITS) muscles

The supraspinatus, infraspinatus, teres minor and subscapularis compose the rotator cuff

2

Pectoralis major

Flexion, extension, adduction, internal rotation, and horizontal adduction of the shoulder joint

3

Anterior deltoid

Flexion, internal rotation, and horizontal adduction of the shoulder joint

4

Posterior deltoid

External rotation and horizontal abduction of the shoulder joint

5

Entire deltoid

Abduction of the shoulder joint

6

Latissimus dorsi

Extension, adduction, horizontal abduction, and internal rotation of the shoulder joint

7

Infraspinatus

External rotation of the shoulder joint and contributes to the stability of the humeral head

8

Teres minor

External rotation of the shoulder joint and contributes to the stability of the humeral head

9

Subscapularis

Internal rotation of the shoulder joint and contributes to the stability of the humeral head

10

Supraspinatus

Abduction of the shoulder joint and contributes to the stability of the humeral head

11

Teres major

Extension, adduction, and internal rotation of the shoulder joint