1. Humerus

2. Features of Humerus
Head – large, smooth rounded end that articulates with scapula
Greater & lesser tubercles – points of muscle attachment for muscles that move the shoulder and arm
Intertubercular sulcus – shallow groove between greater & lesser tubercles; holds tendons for biceps brachii muscle

3. Features of Humerus Anatomical neck - site of epiphyseal line
Surgical neck – just below tubercles; place where most fractures occur

4. Features of Humerus
Deltoid tuberosity – rough area along humerus where deltoid muscle attaches
Coronoid fossa – on anterior surface; shallow depression for the ulna
Radial fossa – on anterior surface; shallow depression for the radius

5. Features of Humerus
Medial & lateral epicondyles – projections on the distal end where muscles of forearm attach
Capitulum – on lateral side; articulates with radius
Trochlea – on medial side; articulates with ulna

6. Features of Humerus
Olecranon fossa – on posterior surface; where ulna fits with the humerus to form the hinged joint of the elbow