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Laboratory 8. Palm of the Hand
Step 7. Median Nerve and its Major Branches at the Wrist

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Clean the branches of the median nerve. It gives sensory branches to the skin of the palmar surface of the thumb, index finger, middle finger and lateral half of the ring finger [distal pipe cleaner].

The recurrent branch of the median nerve [probe], a motor branch, enters the thenar eminence between flexor pollicis brevis muscle and abductor pollicis brevis muscle to supply the thenar muscles. Other motor branches of the median nerve [probe] also supply the first and second lumbrical muscles.

Links and References:
Grant's: 6.90-6.92
Netter (1ed.): 432, 433, 434, 438, 439 (2ed.): 428, 429, 430, 434, 435
Rohen/Yokochi: 397, 399, 402, and 403