Bones of the Arm and Forearm

The arm bone is the humerus and the forearm bones are the radius and ulna.
The details of the humerus are shown in the adjacent diagram.
The structures you should be able to identify are:
  • head
  • anatomical neck
  • greater tubercle
  • lesser tubercle
  • crest of the greater tubercle
  • crest of the lesser tubercle
  • intertubercular sulcus (groove)
  • deltoid tuberosity
  • medial epicondyle
  • lateral epicondyle
  • capitulum
  • trochlea
  • coronoid fossa
  • olecranon fossa
anterior humerus posterior humerus
The details of the radius and ulna are shown in the diagram.
The structures you should be able to identify are:
    Radius
  • head
  • neck
  • radial tuberosity
  • styloid process
    Ulna
  • coronoid process
  • olecranon process
  • ulnar tuberosity
  • slyloid process
    Interosseous Membrane
anterior & posterior radius and ulna


Summary of Items in Axilla Muscles of Anterior Arm

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