alters sensation in the palm, thumb, index finger, middle finger and half of the ring finger
causes the muscles of the thenar eminence to become weak and wasted
if the damage is due to the carpal tunnel syndrome, the sensation to the palm is spared
damage to the ulnar nerve:
alters sensation to the palm, the dorsum of the hand, the little finger and half of the ring finger
causes a claw deformity in the little and ring fingers because of loss of innervation to their interossei and lumbrical muscles
damage to the radial nerve:
may alter sensation over the dorsum of the hand in the region of the anatomical snuff box
causes wrist drop due to paralysis of the wrist extensors
exacerbation of paraesthesia over the distribution of the median nerve following full flexion of the wrists for 2 min is characteristic of the carpal tunnel syndrome
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