Brachioradialis is innervated by the radial nerve (from the root values C5-C6) that stems from the posterior cord of the brachial plexus.
Despite the bulk of the muscle body being visible from the anterior aspect of the forearm, the brachioradialis is a posterior compartment muscle and consequently is innervated by the radial nerve. Of the muscles that receive innervation from the radial nerve, it is one of only four that receive input directly from the radial nerve.
Brachioradialis is one of the muscles that comprise the posterior compartment of the forearm. It is the most superficial muscle of the radial side of the forearm, forming the lateral wall of the cubital fossa. 1 2
Brachioradialis: The brachioradialis is a paradoxical muscle. Its origin and innervation are characteristic of an extensor muscle, but it is actually a flexor at the elbow joint. The brachioradialis muscle is most visible when the forearm is half pronated, and flexing at the elbow against resistance.
The brachioradialis (BR), an elbow flexor takes origin from the upper two-thirds of the lateral supracondylar ridge of the humerus and inserts into the base of the suprastyloid process of the radius. The radial nerve innervates it.
The nerve to the brachioradialis is the radial nerve, which arises from cervical levels five through seven and thoracic level one. The radial recurrent artery supplies blood to the brachioradialis muscle. The cubital fossa of your elbow, also know as the “elbow pit,” is bordered laterally by the brachioradialis muscle.
The radial nerve is a nerve in the human body that supplies the posterior portion of the upper limb. It innervates the medial and lateral heads of the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm and the associated joints and overlying skin.. It originates from the brachial plexus, carrying fibers from the ventral roots …