Question

Kevin presents to your office after a mountain biking accident last weekend during which he fell on his left elbow. He says that since the accident, his forearm alternates between periods of numbness and feeling "like he has hit his funny bone." You test the two-point discrimination on Kevin’s left fifth digit and find that it is 6 mm. On his right fifth digit, however, it is less than 1 mm. You also find that his forearm muscles that flex his hand on the left side are very weak, as are most of the intrinsic muscles of his left hand. What has likely happened? How does this explain the results of the two-point discrimination test? (Hint: You may want to refer to Unit 14, pp. 359–388, for help.)

Answer 1

The correct answer is medial nerue

Explanation: