where does the radial nerve insert
The radial nerve originates as a terminal branch of the posterior cord of the brachial plexus. It goes through the arm, first in the posterior compartment of the arm, and later in the anterior compartment of the arm, and continues in the posterior compartment of the forearm.t is commonly believed that the radial nerve also provided motor innervation to the long head of the triceps. However, a study conducted in 2004 determined that, in 20 cadaveric specimens and 15 surgical dissections on participants, the long head was innervated by a branch of the axillary nerve in all cases.
The ulnar nerve and its branches innervate the following muscles in the forearm and hand: An Articular branch that passes to the elbow joint while the ulnar nerve is passing between the olecranon and medial epicondyle of the humerus. 1  In the forearm, via the muscular branches of ulnar nerve: Flexor carpi ulnaris. 2  In the hand, via the deep branch of ulnar nerve: hypothenar muscles Opponens digiti minimi.