Muscular branches of the radial nerve
Encyclopedia
The muscular branches of the radial nerve
supply the Triceps brachii, Anconæus, Brachioradialis
, Extensor carpi radialis longus, and Brachialis, and are grouped as medial, posterior, and lateral.
That to the medial head is a long, slender filament, which lies close to the ulnar nerve as far as the lower third of the arm, and is therefore frequently spoken of as the ulnar collateral nerve.
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It divides into filaments, which supply the medial and lateral heads of the Triceps brachii and the Anconæus muscles.
The branch for the latter muscle is a long, slender filament, which descends in the substance of the medial head of the Triceps brachii.
, Extensor carpi radialis longus, and the lateral part of the Brachialis.
Radial nerve
The radial nerve is a nerve in the human body that supplies the upper limb. It supplies 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...
supply the Triceps brachii, Anconæus, Brachioradialis
Brachioradialis
Brachioradialis is a muscle of the forearm that acts to flex the forearm at the elbow. It is also capable of both pronation and supination, depending on the position of the forearm...
, Extensor carpi radialis longus, and Brachialis, and are grouped as medial, posterior, and lateral.
Medial
The medial muscular branches supply the medial head of the Triceps brachii.That to the medial head is a long, slender filament, which lies close to the ulnar nerve as far as the lower third of the arm, and is therefore frequently spoken of as the ulnar collateral nerve.
Posterior
The posterior muscular branch, of large size, arises from the nerve in the groove between the Triceps brachii and the humerusHumerus
The humerus is a long bone in the arm or forelimb that runs from the shoulder to the elbow....
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It divides into filaments, which supply the medial and lateral heads of the Triceps brachii and the Anconæus muscles.
The branch for the latter muscle is a long, slender filament, which descends in the substance of the medial head of the Triceps brachii.
Lateral
The lateral muscular branches supply the BrachioradialisBrachioradialis
Brachioradialis is a muscle of the forearm that acts to flex the forearm at the elbow. It is also capable of both pronation and supination, depending on the position of the forearm...
, Extensor carpi radialis longus, and the lateral part of the Brachialis.