![]() ![]() The course of the median nerve from the neck to the hand creates opportunity for several areas of compromise. Remember that the median nerve derives from the C5, C6, C8 and T1 cervical roots, upper and lower trunks, extends to the lateral and medial cords as it continues in the arm, forearm and the hand. The rest of the intrinsic muscles of the hand are supplied by the ulnar nerve.Īside from the sensory deficits, severe entrapment of the median nerve at the wrist will cause weakness in the grip with patients complaining of dropping objects while atrophy of the thenar eminence becomes obvious.ĭespite the above symptoms, sensory, motor or both, the astute physician must be very careful in diagnosing the condition as carpal tunnel syndrome, simply because there are many other conditions that can present with similar symptoms. It also supplies the muscles of the thenar eminence by a recurrent thenar branch. ![]() The condition which affects 1 in 20 people can cause numbness, tingling, burning sensation and pain affecting the fingers receiving sensory innervation by the median nerve.Īt the same time, in the hand, the median nerve supplies motor innervation to the 1st and 2nd lumbrical muscles. Carpal Tunnel Syndrome is defined as the entrapment of the median nerve in the carpal canal at the wrist. ![]()
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