Humerus

The humerus is the only bone of the skeleton of the arm (thoracic stylopodium).

It is composed by three basic segments:

• The proximal extremity, articulating with the scapula and bearing the head and the major and lesser tubercles

• The body (shaft) bearing the deltoid tuberosity

• The distal extremity bearing the humeral condyle and articulating with the radius and ulna