Which muscle originates on the humeral medial epicondyle and proximal ulna and spans the elbow anteriorly to attach on the lateral surface of the radius near its midpoint?

Question

Quizplus · Accepted Answer

The muscle described is the pronator teres, which originates on the humeral medial epicondyle and proximal ulna and attaches on the lateral surface of the radius near its midpoint, allowing for pronation of the forearm. The supinator originates on the lateral epicondyle of the humerus and the supinator crest of the ulna, and the anconeus originates on the lateral epicondyle of the humerus and attaches to the olecranon process of the ulna. The brachialis originates on the distal half of the anterior surface of the humerus and inserts on the coronoid process of the ulna.

Which Muscle Originates on the Humeral Medial Epicondyle and Proximal