Radius & Ulna

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Radius

  • Head – articulates with capitulum of humerus
  • Neck – held to ulna by annular ligament
  • Radial tuberosity – biceps brachii inserts here
  • Body
  • Ulnar notch – receives head of ulna
  • Styloid process – surface landmark
  • Carpal articular surface – articular surface located at the distal most aspect of the radius and located between the ulnar notch and the styloid process.

Ulna

  • Olecranon (process) – triceps brachii attaches distally at this structure
  • Coronoid process
  • Radial notch – receives head of radius
  • Trochlear notch – articulates with trochlea of humerus
  • Ulnar tuberosity
  • Body
  • Head
  • Styloid process – surface landmark