GROSS ANATOMY

Detailed explanation-1: -The part of the humerus that articulates with the ulna is the capitulum. This is a bulbous area at the distal end of the humerus, meaning the end of the humerus that is furthest from the trunk of the body when the arm is outstretched. The articulation of the humerus with the ulna and the radius forms the elbow.

Detailed explanation-2: -The capitellum, also referred to as the capitulum, is the lateral part of the humeral condyle that articulates with the radial head.

Detailed explanation-3: -The lateral portion of the articular surface of humerus consists of a smooth, rounded eminence, named the capitulum of the humerus; it articulates with the cupshaped depression on the head of the radius, and is limited to the front and lower part of the bone.

Detailed explanation-4: -The ulna is one of the two forearm long bones that, in conjunction with the radius, make up the antebrachium. The bone spans from the elbow to the wrist on the medial side of the forearm when in anatomical position. In comparison to the radius, the ulna is described to be larger and longer.