Radial fossa

Definition

The radial fossa is a shallow depression located on the anterior surface of the distal end of the humerus, where it accommodates the head of the radius when the forearm is flexed. It plays a significant role in elbow joint flexibility and stability.

Related terms

Humerus: The long bone in the upper arm that extends from the shoulder to the elbow, serving as an attachment site for muscles and articulating with other bones to form joints.

Radius: One of the two large bones in the forearm, located on the thumb side, playing a crucial role in wrist motion and forearm rotation.

Elbow Joint: A complex hinge joint formed by three bones—the humerus, radius, and ulna—allowing for flexion and extension as well as rotational movements of the forearm