All three muscles of the wrist flexor group can also do what action?
A)flexion of the arm at the glenohumeral joint
B)flexion of the forearm at the elbow joint
C)extension of the hand at the wrist joint
D)pronation of the forearm at the radioulnar joints

Question

Quizplus · Accepted Answer

The three muscles of the wrist flexor group (flexor carpi radialis, flexor carpi ulnaris, and palmaris longus) all originate on the medial epicondyle of the humerus and insert on the carpals and metacarpals of the hand. While their primary action is wrist flexion, they can also assist in flexion of the forearm at the elbow joint. They do not perform flexion of the arm at the glenohumeral joint or pronation of the forearm at the radioulnar joints. While they are involved in wrist extension, it is not their primary action.

All Three Muscles of the Wrist Flexor Group Can Also