Cubital fossa

Cubital Fossa

Anatomy
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Cubital fossa

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Description:
The cubital fossa is the triangular area on the anterior view of the elbow of a human or other hominid animal. It is colloquially known as the "elbow pit".

Boundaries

  • superior (proximal) boundary - an imaginary horizontal line connecting the medial epicondyle of the humerus to the lateral epicondyle of the humerus
  • medial (ulnar) boundary - lateral border of pronator teres muscle
  • lateral (radial) boundary - medial border of brachioradialis muscle
  • apex- it is directed inferiorly, and is formed by the meeting point of the lateral and medial boundaries
  • superficial boundary (roof)- skin, superficial fascia containing the median cubital vein, the lateral cutaneous nerve of the forearm and the medial cutaneous nerve of the forearm, deep fascia reinforced by the bicipital aponeurosis (a sheet of tendon-like material that arises from the tendon of the biceps)
  • deep boundary (floor)- brachialis and supinator muscles


Contents

The cubital fossa contains four main vertical structures (from lateral to medial):


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