ATS 701 Primary Movers

Shoulder Flexion

-anterior deltoid

-coracobrachialis

Shoulder Extension

-latissimus dorsi

-posterior deltoid

-teres major

Shoulder Elevation (ABduction)

-middle deltoid

-supraspinatus

Shoulder Horizontal ABduction/Extension

-posterior deltoid

Shoulder Horizontal ADDuction/Flexion

-pectoralis major (sternal and clavicular fibers)

Shoulder Internal Rotation

-subscapularis

-latissimus dorsi

-teres major

Shoulder External Rotation

-infraspinatus

-teres minor

Elbow Flexion

-biceps

-brachialis

-brachioradialis

Elbow Extension

-triceps brachii

Forearm Supination

-supinator

-biceps brachii

Forearm Pronation

-pronator teres

-pronator quadratus

Wrist Flexion

-flexor carpi ulnaris

-flexor carpi radialis

-palmaris longus

Wrist Extension

-extensor carpi radialis longus

-extensor carpi radialis brevis

-extensor carpi ulnaris

MCP Flexion Digits 2-5

-lumbricals

-palmar and dorsal interossei

MCP Extension Digits 2-5

-extensor digitorum

PIP Flexion Digits 2-5

-flexor digitorum superficialis

PIP Extension Digits 2-5

-extensor digitorum

Thumb MCP Flexion

-thenar muscles

-flexor pollicis brevis

Thumb MCP Extension

-extensor pollicis longus

-extensor pollicis brevis

Thumb IP Flexion

-flexor pollicis longus

Thumb IP Extension

-extensor pollicis longus