Female Biceps Brachii

Description

Centered on the anterior arm, the biceps brachii is rendered as a fusiform muscle with a lateral long head and a medial short head that merge into a single belly over the mid-humerus. Superiorly, the long head tendon tracks toward the supraglenoid tubercle and would course through the intertubercular sulcus of the humerus, while the short head anchors to the coracoid process, lying medial to the deltoid contour at the shoulder. Distally, the tendon narrows toward the radial tuberosity on the proximal radius, with the bicipital aponeurosis fanning medially across the cubital fossa over the brachial artery and median nerve. A clear landmark. Functionally, this muscle is more than an elbow flexor: its insertion on the radius makes it the prime supinator, and the proximal tendon anatomy is the basis for common shoulder pain patterns from long head tendinopathy or SLAP lesions at the superior labrum. The distal attachment matters in trauma as well, where distal biceps tendon rupture produces loss of supination strength and a retracted muscle belly, and the relationship to the cubital fossa explains why the lacertus fibrosus can mask retraction or influence surgical repair planning. Use this plate for upper-limb anatomy teaching in gross anatomy and kinesiology courses, and for publishing figures that need accurate orientation of the long and short heads in relation to the shoulder girdle and forearm. It also supports patient education materials on biceps tendinitis, distal tendon rupture, and safe venipuncture anatomy at the antecubital fossa. Anatomical accuracy verified by SciePro's Medical Advisory Board.