Radioulnar joints and the wrist region

Anterior Compartment

The muscles of the flexor compartment perform the following actions/functions :

Work out the muscle or muscle groups that subserve the functions listed

2.4. Muscle origins, insertions, innervation and actions: Flexor forearm compartment

Muscle	Origin	Insertion	Innervation	Action
Pronator teres	Medial epicondyle; medial border of coronoid process	Pronator tuberosity on lateral radial shaft	median	Pronation and flexion of forearm
Flexor carpi radialis	Medial epicondyle of humerus	Trapezium, Base of 2 nd and 3rrd metacarpal	median	Flexion and abduction of hand
Palmaris longus	Medial epicondyle of humerus	Flexor retinaculum and palmar aponeurosis	median	Flexes hand
Flexor carpi ulnaris	Medial epicondyle & medial aspect of olecranon process	Pisiform, hook of hamate, base of 5 th metacarpal	ulna	Flexion pf hand, adduction of hand
Flexor digitorum superficialis	Medial epicondyle, & medial asoect coronoid process & oblique line of radius	Sides of middle phalanx	median	Flexion of middle finger, assists hand flexion and that of proximal phalanx
Flexor pollicis longus	Shaft of radius and interosseous membrane	Base of distal phalanx of thumb	Anterior interosseous branch of median	Flexes distal phalanx
Flexor digitorum profundus	Upper ulnar shaft and interosseous membrane	Base of distal phalanx	Ulnar and Anterior interosseous branch of median	Flexes distal phalanx, assists flexion of middle and proximal phalanges
Pronator quadratus	Lower shaft of ulna	Lower shaft of radius	Anterior interosseous branch of median	Pronation of forearm

CHAPTER 16 : Forearm Elbow joint and the Back of the hand