Why Is Funny Bone So Called. Whoever named the back of your elbow the funny bone had a lousy sense of humor. How can a gentle tap cause such a severe reaction.
Running down the inside part of your elbow is a nerve called the ulnar nerve. But your funny bone isnt actually a bone at all. The ulnar nerve lets your brain know about feelings in your fourth and fifth fingers.
This pun plays on the similarity of the terms humerous and the bones actual name humerus 1 0.
There are two camps in the debate over how the ulnar nerve got be known as the funny bone. It may also refer to the odd sensation you get when it is struck. There are two theories why the ulnar nerve in the back of the elbow is called the funny bone. Where is the funny bone.
