「The cubital fossa or elbow pit[1] is the triangular area on the anterior view of the elbow of a human or other hominid animal. It is also called the antecubital fossa because it lies anteriorly to the elbow (Latin cubitus) when in standard anatomical position.
・medial (ulnar) boundary — lateral border of Pronator Teres muscle originating from the medial epicondyle of the humerus.
・lateral (radial) boundary — medial border of Brachioradialis muscle[2] originating from the lateral supraepicondylar ridge of the humerus.
・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 brachii)
