_AlreadyTaken_ t1_j46ugpm wrote
Reply to comment by FineRevolution9264 in When nerve damage occurs, where is the pain perceived? at the site of damage or at the end of the nerve? by menooby
This may help:
>When you stub your toe, slam your finger in a door or smack your head, irritation and damage to your tissue triggers the surrounding nerves to coordinate nociceptive pain. These nerves inform your brain you're in pain — cue those sharp or throbbing sensations. Moral of the story: Stop doing the thing you're doing, it's causing damage.
>Nerve pain is a bit different. The pain is still coordinated by a nerve, but the irritation or damage is occurring directly to the nerve itself. In addition, the pain feels different — more electric, burning or stinging.
>In the case of hitting your funny bone, squashing your ulnar nerve into your medial epicondyle bone is irritating. And you feel this nerve pain in the areas where your ulnar nerve provides sensation, resulting in an unpleasant, shocking sensation shooting down your forearm and into your fingers.
So one is from nerve fiber sensory organs at the nerve endings. The other is affecting the nerve directly so it registers it along the entire region the nerve covers.
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