Health Sciences 2300A/B Lecture Notes - Lecture 7: Interossei, Palmar Interossei Muscles, Carpal Tunnel

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 2300A/B
• Professor: Christopher William James Melling

Document Summary

Superficial layer forearm flexors: common origin - medial epicondyle, pronator teres, attaches from the medial epicondyle and attaches to the shaft of the radius, pronates the elbow, note - very slight flexion of the elbow. Flexor carpi ulnaris: flexor and adductor of the wrist, from the medial epicondyle, goes down the ulnar side of the forearm and attaches to the. Innervation - all median nerve, except the flexor carpi ulnaris, which is innervated by the ulnar nerve. Deeper layer forearm flexors: referred to as the profundus. Supinator: not anterior, just seen in this image. Flexor digitorum profundus: under the flexor digitorium superficialis, flexes all the way to the finger tips, originates from the ulna and radius and attaches to the base of the distal phalanx. Innervation - all median nerve except a portion of the flexor digitorium profundus, by the ulnar nerve: only digit 5 and half of digit 4 are innervated by the ulnar nerve.