Parts of Shoulder and Arm Bones
- glenoid fossa (depression that articulates with humerus)
- spine (long, posterior process for muscle attachment)
- acromian process (articulates with clavicle)
- acromial end (articulates with scapula)
- sternal end (articulates with manubrium of sternum)
- head (articulates with the ulna)
- olecranon fossa (posterior, oval depression for the olecranon process of the ulna)
- capitulum (round process superior to radius)
- trochlea (concave surface that articulates with ulna)
- head (articulates with the ulna)
- olecranon process (fits into olecranon fossa of humerus)
- semilunar notch (half-moon depression that articulates with the trochlea of ulna)
- Proximal row – Scaphoid, Triquetrum, Lunate, and Pisform
- Distal row – Trapezium, capitate, trapezoid, and hamate
This page was updated in November 2005.
