The Medial Bone of the Forearm, the Main Forearm Bone

Question

The medial bone of the forearm, the main forearm bone in the elbow joint, is the _______.
A) ulna
B) radius
C) humerus
D) femur

Accepted Answer

The medial bone of the forearm, also known as the ulna, is one of the two forearm bones and is the main forearm bone in the elbow joint. The radius is the lateral bone of the forearm, and the humerus is the upper arm bone, neither of which fully fit the description given. The femur is the thigh bone and is not located in the forearm.