Short Stuff: Funny Bone

Origins

The term "funny bone" is a playful misnomer, as it refers not to a bone but to the ulnar nerve, which runs through the elbow. Josh Clark and Chuck Bryant explain that the name might originate from a pun on the humerus bone, located near the nerve. This nerve is responsible for the unique sensation felt when the elbow is struck, a feeling unlike any other pain in the body 1.

The funny bone isn't a bone. I think probably everybody knows that. I regret saying it now that I think about it. But what you're actually doing is hitting a nerve, a specific nerve called the ulnar nerve.

--- Josh Clark

The ulnar nerve is particularly vulnerable because it is sandwiched between the bone and skin, making it easy to hit and causing that distinctive tingling sensation 2.

   

Sensation

The sensation of hitting the funny bone is distinct due to the direct impact on the ulnar nerve, which differs from typical nociceptive pain. Chuck Bryant describes this nerve pain as a "special kind of pain" reserved for when the nerve itself is hurt, unlike the pain from stubbing a toe 3. This unique sensation often radiates down to the pinky and ring fingers, highlighting the nerve's path from the spine to the hand 4.

The short stuff, right? The one good thing about hitting your funny bone in particular, hitting that nerve, is after a very short while, especially if you rub it for some weird reason, it will subside, and you'll be. You'll go back to normal.

--- Josh Clark

Despite the initial shock, the pain typically subsides quickly, unlike other nerve injuries that can lead to prolonged discomfort.