Features Of Humerus

It is a bone superior extremity. It founds in arm. There is one pair right and left humerus in human body.

Features :

Upper end : It bears.

          1) Head : It is rounded
          2) Neck : Two types Anatomical and Surgical
          3) Greater tubercle
          4) lesser tubercle
          5) Inter-tubercular Sulcus 

Shaft :
       1) Three borders - Anterior,Lateral and Medial.
       2) Three surface - Anterolateral, Anteromedial, Posterior.

Lower end: It bears.

           Articular part
                          Capitulum - Rounded projection
                          Trochlea

         Non articular part

                          Two epicondyles : Medial,Lateral

                          Two supra condylar ridges-Lateral,Medial.

                          Two fossa- Coronoid fossa,Radial fossa 

Anatomical position :
Upper end is rounded and form head.Head directed medially and backwards. Olecranon fossa directed downwards.