When we have a cut in our mouth, for instance, and we touch it with our tongue, it feels very different from sorrounding tissue.
I know that irritation leads to a temperature increase at the wound, but that doesn’t explain why the cut feel more “electric” (don’t know how else to word it)
In other words, if I felt no paid I would still be able to identify a cut, but why?
Same is true for cuts in other parts of the body.
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When you cut yourself, it triggers pain receptors.
Yout skin acts as a protective layer to those receptors, so when you touch your skin normally it doesnt affect the receptors. However when you cut yourself those receptors become exposed, so when you touch it, you are touching it direct and that triggers those receptors, causing it to feel different.
If you think of a boiled runny egg, you can touch the wgg white all day and the egg will be fine. You cant touch the yolk. If you cut the egg, the yolk becomes exposed, and you can then touch the yolk, which would feel different to the egg white.
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