Humerus (pl. humeri):
Important Anterior Features:
Head: The ball of the “ball and socket” joint. Articulates with glenoid fossa of scapula.
Anatomical and Surgical Necks: Connect head to the rest of the bone. Anatomical is proximal to Surgical.
Greater and Lesser Tubercles: Greater is proximal/superior to Lesser. Greater=Superior is a way to remember them.
Intertubercular Groove: Simply a groove between lesser and greater tubercles. This is the only relevant anterior groove.
Deltoid Tuberosity: Named such because this is where the Deltoideus inserts
Medial and Lateral Epicondyle: Named directionally
Trochlea and Capitulum: Part of the “Condyle”. The Capitulum looks like a circle in 2D graphics, just like a “cap” on a bottle.
Coronoid Fossa: Sits above the Trochlea
Important Posterior Features:
Radial Groove: The only relevant posterior groove
Olecranon Fossa: The most distal feature of the posterior view