Humerus

Head of the Humerus

the smooth, ball-shaped upper end of the humerus.

Greater tubercles

large bony prominence on the outer side of the upper end of the humerus

Lesser tubercles

a small bony prominence located on the anterior surface of the upper end of the humerus

Intertubercular groove

a deep, vertical depression located on the anterolateral aspect of the proximal humerus

Anatomical Neck

a narrow groove or constricted region on the upper end of the arm bone that separates the spherical head of the humerus from the greater and lesser tubercles

Surgical Neck

the narrow region immediately below the greater and lesser tuberosities, connecting the spherical humeral head to the main shaft of the upper arm bone.

Deltoid tuberosity

a rough, V-shaped or triangular bony elevation located on the both sides of the middle of the humerous

Radial fossa

a small, shallow depression on the anterior surface of the distal humerus

Coronoid fossa

a small, shallow depression on the anterior surface of the lower end of the humerus

Olecranon fossa

a deep, triangular depression located on the posterior side of the distal humerus

Medial epicondyle

a prominent bony bump located on the medial side of the lower arm humerus

Lateral epicondyle

the palpable bony bump on the lateral side of the lower arm humerus.

Trochlea

a smooth, spool-shaped articular surface located on the medial side of the distal end of the humerus

Capitulum

a smooth, rounded articular eminence located on the lateral part of the distal end of the humerus