The lateral cutaneous nerve of the forearm is a sensory nerve that is a continuation of the musculocutaneous nerve. It supplies sensory innervation to the skin of the lateral forearm. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Course The lateral cutaneous nerve of the forearm arises as a continuation of the musculocutaneous nerve within the roof of the cubital fossa. It passes along the lateral border of the biceps brachii tendon and deep to the cephalic vein. It then divides into anterior and posterior branches: Anterior branch – descends down the anterolateral aspect of the forearm to the wrist, where it is situated anterior to the radial artery. It supplies branches to the skin of the anterolateral forearm. At the base of the thenar eminence, the nerve terminates as several small branches. Dorsal branch – descends down the posterolateral aspect of the forearm to the wrist. It supplies cutaneous innervation to a small area of the posterolateral forearm. Adobe Stock, Licensed to TeachMeSeries Ltd Fig 2The course of the lateral cutaneous nerve of the forearm Pro Feature - Dissection Images Prosection of the upper limb. The biceps brachii and coracobrachialis are visible, as well as the major peripheral nerves of the upper limb. Prosection of the upper limb. The biceps brachii and coracobrachialis are visible, as well as the major peripheral nerves of the upper limb. You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More Sensory Function The lateral cutaneous nerve of the forearm supplies cutaneous innervation to the skin of the lateral forearm. By TeachMeSeries Ltd (2025) Fig 2Cutaneous innervation of the lateral cutaneous nerve of the forearm. Print Article Rate This Article