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Extrinsic muscles of the hand innervated by the radial nerve. extensor digitorum communis (EDC), extensor digiti minimi (EDM), extensor indicis, extensor pollicis longus (EPL), extensor pollicis brevis (EPB), abductor pollicis longus (APL).
Injury to the extensor muscles of the arm is often caused by repetitive motion. Too much stress on a muscle can weaken the tendons, expose nerves or inflame tissue. The radial nerve you built on your ManikenÂ® is the largest nerve of the brachial plexus and supplies electrical stimulation to all extensors in the arm.ote that the string from the dorsal elbow spirals to the ventral forearm along the ulna. Stop the nerve before it runs downs the middle finger. Roll pieces of spaghetti out even thinner and use these small pieces to create digital branches of the ulnar nerve to the ring and little finger.