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Have you ever wondered why you get an electric shock when your elbow hits somewhere?


When the rest of the body collides with something hard, a sharp pain is felt, but have you realized that there is no pain when the elbow is hurt, but it feels like a strong electric current. Why does this happen The elbow bone that receives electric current is called ‘funny bone’ in common parlance and ulnar nerve in medical language. However, what you feel is not actually an electric current. The “funny bone” is found at the back of your elbow. This nerve runs through the neck, shoulders, and arms to the wrist, where it is surrounded by most of the bones, muscles, and ligaments. Because the nerve passes through the elbow, where it is covered only by skin and fat, even That this slightest push produces a sensation. When your funny bone is injured, this injury occurs to the nerves, which compresses these nerves that are attached to the bone. This causes pain, tingling and temporary numbness of the area.

Why was it named ‘Funny Bone’?

There are two theories as to how this part of the elbow got the name “funny bone”. The name of the upper arm bone is “humerus” and it is called the “funny bone” because of the sound of the word “humer”. Another idea is that an injury to this spot produces a strange sensation, laughter, anger, or current emotion, hence the name funny bone.

Why do you feel the current?

The structure of your hand is what causes the “funny bone” sensation. The ulnar nerve is on the inside of your arm. This nerve is responsible for sending messages from your brain to your hand, causing movement and sensation. Most of this tendon is protected between the joints, bones and marrow, but the tendon passing through the elbow is covered by skin and fat.

In such a situation, when the elbow suddenly collides with something, then this vein gets a direct shock and we feel electric current. This sensation may be uncomfortable or painful for a while. But after some time it becomes normal. No pain or discomfort is felt.

So the next time you get your elbow struck by lightning like this, it’s not the ulnar bone that’s at fault, but the ulnar nerve injury.