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Which bone is characterized by the presence of the olecranon zone and the coronoid zone?

Which bone is characterized by the presence of the olecranon zone and the coronoid zone? Correct Answer Ulna

Concept:-

  • Olecranon zone: it is a large, thick, curved bony eminence of the ulna, a long bone in the forearm that projects behind the elbow.
  • Coronoid zone: it is a thin, triangular eminence, which is flattened from side to side and varies in shape and size.

Explanation:

Ulna:

  • Located on the medial aspect (the little finger side) of the forearm.
  • Longer than the radius.
  • At the proximal end is the olecranon, which forms the prominence of the elbow.
  • The coronoid process is an anterior projection, together with the olecranon receiving the trochlea of the humerus. 

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