10 months ago
This presentation is about understanding the arrangement of the structures in the anterior elbow. The cubital fossa is a triangular depression located in front of the anterior elbow. The medial border is formed by the pronator teres, which arises from the medial epicondyle of the humerus. The lateral border of the cubital fossa is formed by the brachioradialis muscle which arises from the lateral supracondylar ridge of the humerus. The meeting of these two muscles forms the apex of the cubital fossa. The brachioradialis muscle overlaps the pronator teres, so the lateral border overlaps the medial border. The base of the cubital fossa is superior and is represented by a horizontal line connecting the two epicondyles of the humerus, the lateral and medial epicondyles.
The contents of the cubital fossa from medial to lateral are median nerve, brachial artery, biceps tendon, and radial nerve. The floor of the cubital fossa is made up of the lower part of the brachialis muscle medially and the supinator muscle laterally. The roof of the cubital fossa is made up of skin, fascia, and the bicipital aponeurosis.