Anatomy and Cell Biology 3319 Lecture Notes - Lecture 3: Anconeus Muscle, Quadratus Of Athens, Triceps Brachii Muscle
6 Mar 2016
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Muscles of the forearm: anterior compartment (flexor / pronator) Finer motor movement toward the distal end of the limbs. Describe the 9 muscles of the anterior compartment of the forearm (3 do not cross the wrist) Superficial (all 4 innervated by the median nerve) common point of origin for all 4 is the medial epicondyle of the humerus. Flexor carpi radialis: origin is at the medial epicondyle of the humerus; its insertion is at the base of the 2nd metacarpal; action is to flex and abduct the hand and wrist; innervated by the median nerve. 4 digits and also flexes the proximal phalanges at the metacarpal phalangeal joints; innervated by the median nerve. Flexor digitorum profundus (only lateral half is innervated by the median nerve): origin proximal. Brachioradialis (innervated by the radial nerve): superficial muscle of the lateral forearm. Although the muscle is visible from the anterior compartment, it is technically a posterior compartment muscle.
