Proximal end of Humerus

Surgical neck

Constricted and narrow portion of the humerus distal to the tubercles Thinned out portion Most common fracture site of the humerus

Greater tubercle

Large bony prominence on the lateral side of the humerus Located just below the anatomical neck Point of muscle insertion

Head

Large, smooth and rounded Artculates with the glenoid fossa of the scapula to form the shoulder joint

Anatomical neck

Slightly constricted area just distal to the head Actual site of the epiphyseal plate

Lesser tubercle

Smaller bony prominence on the anterior side of the humerus Point of insertion