Post subject: The funny bone isn't really a bone!
Posted: Fri Sep 11, 2009 11:02 am
Did you know that the funny bone isn't really a bone?
Quote:
It is the ulnar nerve, which runs down the inside part of the elbow under the humerus bone. The ulnar nerve signals the brain about feelings in the fourth and fifth fingers, and controls some of the movement in the hand. So, when you hit your elbow, the ulnar nerve is bumped against the humerus, and that is what causes a tingling feeling and pain in the arm.
I didn't know it was a nerve.