A patient presents with a weak grip. He does not have anyhistory of injury to his upper limb. While this could be a localproblem following an injury to the upper limb, it could just aseasily be damage to the spinal nerve resulting from an injury tohis neck, causing pressure on one or more roots of the brachialplexus. The weakness may not be muscle weakness (such as fromdisuse), but lack of innervation to the hand; these presentsimilarly. Your task will be to understand the anatomy of thisregion and possible sources of impairment that present similarly.With a good understanding of anatomy, the correct source can beidentified.
