How does your body know to grow skin where it doesn’t normally have to? Such as over the stump of a lost limb or the socket of a pulled tooth?

Question

Had a tooth pulled recently, really curious how my body knows to grow skin over the empty socket when it doesn’t normally have to grow skin there. It’s not like your body tries to grow skin over your teeth.

In: Biology

Answer 1

When I’ve had teeth pulled, sometimes the hole was stitched shut, but sometimes it was left alone (I was given a syringe to wash it!) and the surrounding tissue swelled to squeeze the hole away.

(Note that there’s no skin in your mouth, that’s mucous membrane, like lips, nostrils, the inside of eyelids …)