"origin: medial cord from roots C8-T1"
"course: medial to the axillary artery to descend downwards and pass posterior to the medial epicondyle of the humerus, continues down the forearm and dives into Guyon's canal as it approaches the wrist"
"major branches: dorsal cutaneous branch, palmar cutaneous branch, branch to palmaris brevis, superficial terminal branch, deep terminal branch"
"motor supply: innervates all the muscles of the hand, except for the first and second lumbricals, abductor pollicis brevis and opponens pollicis"
"sensory supply: medial aspect of the palm, the palmar and dorsal aspects of the fifth digit, and the adjacent half of the fourth digit"
"Martin-Gruber anastomosis: between median nerve or anterior interosseous branch and ulnar nerve, in the forearm"
"Riche-Cannieu anastomosis: between the recurrent branch of median nerve and deep branch of ulnar nerve, in the hand"
"Marinacci anastomosis: a reverse Martin-Gruber anastomosis, between the ulnar nerve and median nerve"
"Berrettini anastomosis: between digital sensory nerve of ulnar and median nerves"
"Guyon's canal syndrome"
Expected headings
"Arm"
"Forearm"
"Hand"
"Branches"
"Terminal branches"
"Supply"
"Size"
"articular innervation to elbow, wrist, carpal and phalangeal joints"