ABSTRACT
This chapter provides that the themed presentation encourages quick, focused study and detailed answers aid comprehension and encourages familiarity with peripheral neuropathy with essential diagrams, colour images and sample MRIs. The ulnar nerve supplies the flexor carpi ulnaris and the ulnar half of the flexor digitorum profundus in the forearm. In the hand, it supplies the hypothenar muscles, which include the opponens digiti minimi, abductor digiti minimi and flexor digiti minimi, and also supplies the medial two lumbricals, dorsal interossei, palmar interossei and adductor pollicis. However, if the ulnar nerve lesion is more proximal (e.g. at the cubital tunnel at the elbow), the flexor digitorum profundus is denervated and hence flexion of the interphalyngeal joints does not occur and hence the ring and little fingers are held fixed in extension.
