Question

What is clinically significant about the two terminal branches of the radial nerve located within the forearm?

A) They are sensory nerves.
B) They are responsible for elbow flexion.
C) They innervate the extensor muscles of the forearm.
D) They have no clinical relevance.

Answer 1

The two terminal branches of the radial nerve located within the forearm innervate the extensor muscles of the forearm, including the brachioradialis and brachialis.

Step-by-step explanation:

The two terminal branches of the radial nerve located within the forearm innervate the extensor muscles of the forearm. These muscles include the brachioradialis, which can flex the forearm quickly or help lift a load slowly; and the brachialis, which provides additional power in flexing the forearm. The radial nerve also innervates other extensor muscles located in the posterior compartment of the forearm.