Supernumerary Head of Biceps Brachii: A Case Report

Unilateral Third Head of Biceps Brachii

Abstract

The biceps brachii is a muscle of the anterior compartment of the arm, typically composed of two heads that fuse into a single muscle belly. During routine cadaveric dissection, we observed a unilateral supernumerary (third) head originating from the anteromedial surface of the humerus. Recognition of such variations is important for clinicians , radiologists, and surgeons due to their potential clinical implications.