1 — Trochlea; 2 — Olecranon fossa; 3 — Medial epicondyle; 4 — Groove for ulnar nerve; 5 — Medial supraepicondylar ridge; Medial supracondylar ridge; 6 — Medial border; 7 — Shaft of humerus; Body of humerus, posterior surface; 8 — Surgical neck; 9 — Anatomical neck; 10 — Head of humerus; 11 — Greater tubercle; 12 — Radial groove; Groove for radial nerve; 13 — Lateral margin; 14 — Medial supraepicondylar ridge; Medial supracondylar ridge; 15 — Lateral epicondyle; 16 — Capitulum; 17 — Radial fossa; 18 — Deltoid tuberosity; 19 — Crest of greater tubercle; Lateral lip; 20 — Intertubercular sulcus; Bicipital groove; 21 — Lesser tubercle; 22 — Crest of lesser tubercle; Medial lip; 23 — Anteromedial surface; 24 — Anterolateral surface; 25 — Coronoid fossa
