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What is Median nerve injury at the wrist leads to all except: and explain in detail?
Ans. D. Loss of adduction of the thumba. Adduction of thumb is carried out by the adductor pollicis, which is a deep muscle of the thumb and is supplied by the deep branch of ulnar nerve. Hence, in median nerve injury it remains functional and there is no loss of adduction of thumb.b. Lumbricals to the index and middle finger are supplied by the median nerve and have lost their function in this injury.c. Thenar muscles are mainly innervated by the median nerve and are paralyzed in this patient.