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1. Teres major - ANSWER
A: extends, adducts, and medially rotates arm
2. Latissimus dorsi - ANSWER
A: extends, adducts, and medially rotates arm
3. Deltoid - ANSWER
A: abducts arm
4. Subscapularis (rotator cuff) - ANSWER
,A: medially rotates arm
5. Infraspinatus (rotator cuff) - ANSWER
A: laterally rotates humerus
6. Teres minor (rotator cuff) - ANSWER
A: laterally rotates humerus
7. Supraspinatus (rotator cuff) - ANSWER
A: abducts humerus
8. Biceps brachii (origin, insertion, action) - ANSWER
-Origin: short head: coracoid process; tendon of long head runs in intertubercular
groove within capsule of shoulder joint
, -Insertion: Radial tuberosity of radius
-Action: Flexes forearm and supination
8. Triceps brachii (origin, insertion, action) - ANSWER
Origin: Long head- inferior margin of glenoid cavity; lateral head- posterior
humerus; medial head- distal radial groove on posterior humerus
Insertion: Olecranon process of ulna
Action: extends forearm
9. Brachialis - ANSWER
A: flexes forearm
Supinator - ANSWER
A: supination of forearm