Cubital fossa



  • Apex: Formed by the meeting point of brachioradials and pronator teres.
  • Base: Formed by an imaginary line joining the two epicondyles of humerus.
  • Laterally: By the medial border of brachioradialis.
  • Medially: By the lateral border of pronator teres.
  • Roof: Formed by-
    • Superficial fascia
    • Deep fascia
    • Bicipital aponeurosis
  • Floor: By brachialis & supinator muscles.



  • Tendon of biceps brachii.
  • Terminal part of brachial artery.
  • Proximal part of radial & ulnar artery.
  • Median nerve.
  • Radial nerve.
  • Vena comitants of brachial, radial & ulnar arteries.
  • Some amount of fat.


Clinical importance:

The cubital fossa is important for the following reasons:

  • Medial cubital vein is often the vein of choice for intravenous injections.
  • Blood pressure is universally recorded by auscultating the brachial artery in front of the elbow.
  • Anatomy of the cubital fossa is useful in case of fracture of the elbow.

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