front 1 pectoralis major | back 1 adducts, flexes and medially rotates arm |
front 2 latissimus dorsi | back 2 adducts, extends and medially rotates arm |
front 3 deltoid | back 3 abducts flexes rotates arm medially and alterally |
front 4 trapezius | back 4 adducts and rotates scapula; elevation and depression of scapula |
front 5 levator scapuale | back 5 elevation of scapula, lateral neck flexion |
front 6 pectoralis minor | back 6 stabilizes, abducts and rotates scapula |
front 7 triceps brachii (long, lateral, and medial head) | back 7 extension of forearm; stabilizes shoulder joint |
front 8 subscapularis | back 8 medial rotation of arm, stabilizes humerus head in glenoid cavity |
front 9 infraspinatus | back 9 lateral rotation of arm, stabilizes humers head in glenoid cavity |
front 10 supraspinatus | back 10 abduction of arm, stabilizes humerus head in glenoid cavity |
front 11 teres minor | back 11 lateral rotation and adduction of arm, stabilizes humerus head in glenoid cavity |
front 12 teres major | back 12 medial rotation, adduction & extension of arm |
front 13 coracobrachialis | back 13 flexion and adduction of arm |
front 14 biceps brachii (long and short head) | back 14 supination and flexion of forearm |
front 15 brachialis | back 15 flexion of forearm |
front 16 brachioradialis | back 16 flexion of forearm; pronation of forearm (when supinated); supination of forearm (when pronated) |
front 17 flexor carpi radialis | back 17 wrist flexion and hand abduction |
front 18 palmaris longus | back 18 wrist flexion (weak) |
front 19 flexor carpi ulnaris | back 19 wrist flexion and hand adduction |
front 20 pronator teres | back 20 forearm pronation |
front 21 flexor pollicis longus | back 21 flexion of thumb |
front 22 flexor digitorum profundus | back 22 flexion of wrist and fingers (2-5) |
front 23 supinator | back 23 supination of forearm |
front 24 extensor carpi radialis longus | back 24 extension of wrist and abduction of hand |
front 25 extensor carpi radialis brevis | back 25 extension of wrist and abduction of hand |
front 26 extensor digitorum | back 26 extension of wrist and fingers (2-5) |
front 27 extensor carpi ulnaris | back 27 extension of wrist; adduction of wrist |
front 28 abductor pollicis longus | back 28 abduction and extension of thumb |
front 29 extensor pollicis longus | back 29 extension of thumb |