This is especially true in the distal area of ​​the second finger, where peptic ulcers can occur. The muscles in that area are atrophy. The first finger is on the same plane as the rest. and his hands resembled monkey paws. ulnar nerve All levels of nerve damage lead to paralysis of the small muscles of the hand. High nerve damage at the level of the shoulder and the third part of the upper arm is accompanied by dysfunction of the forearm muscles of the hand.

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