This 3D print shows the distal arm, partially flexed elbow, and proximal forearm, highlighting the muscles, major nerves, and brachial artery at the cubital fossa.
All fat, superficial veins, and cutaneous nerves have been removed for a clear view of the underlying structures.
Anterior View
The biceps muscle is prominent, with its flattened bicipital aponeurosis passing medially over the common flexor muscles and the tendon inserting into the radial tuberosity. Deep to the biceps, the brachialis is clearly visible. In the proximal forearm, the brachioradialis (partially reflected) and extensor carpi radialis longus are identifiable.
The classic arrangement of biceps tendon, brachial artery, and median nerve runs from lateral to medial, partially covered by the bicipital aponeurosis. The ulnar nerve passes behind the medial epicondyle into the cubital tunnel, while the radial nerve is visible between brachialis and brachioradialis.
Posterior View
The triceps tendon inserts into the olecranon, with the medial and lateral epicondyles clearly visible. The ulnar nerve is also seen passing behind the medial epicondyle before entering the cubital tunnel.
Cross-Section
In transverse view, the biceps lies anteriorly with the brachial artery, median nerve, and ulnar nerve medially. The three heads of triceps are visible posteriorly. In the forearm, the radius and ulna are clear, with the brachial artery medial to pronator teres and the median nerve deep to this muscle.