Humerus Showing Its Anterolateral Surface, Anterior View

Description

Humerus anatomy is presented from an anterior viewpoint with emphasis on the anterolateral surface of the shaft. Proximally, the rounded humeral head sits medial to the greater tubercle, while the lesser tubercle and intertubercular sulcus occupy the anterior aspect near the anatomical neck. Distally, the shaft widens toward the supracondylar ridges, with the lateral epicondyle and capitulum positioned laterally and the trochlea projecting more medially on the anterior distal humerus. Anterolateral shaft topography matters when you need dependable bony reference for muscle attachments and for planning plate position in diaphyseal fracture fixation. The smooth zone between the anterior and lateral borders corresponds to broad areas of brachialis origin anteriorly and transitions laterally toward the deltoid tuberosity region, a landmark often referenced when describing proximal and midshaft fracture locations. Surface anatomy counts. Surgeons and educators use this perspective when explaining the anterolateral approach to the humeral shaft, where the interval between brachialis and brachioradialis provides access while the radial nerve remains a known hazard as it courses posteriorly in the radial groove and then pierces the lateral intermuscular septum. The anterior view also supports teaching of proximal humerus fractures at the surgical neck and tubercle involvement, as well as distal humerus orientation for elbow arthroplasty planning where capitellum and trochlea alignment must be described precisely. Expect this illustration to fit upper limb osteology labs, orthopedic trauma slide decks, and medical publishing figures that need a single, nonambiguous anterior reference for humeral borders and surfaces. It also works well for exam materials that test attachment sites and fracture description using standard anatomical position terms. Anatomical accuracy verified by SciePro's Medical Advisory Board.