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Why does a wasp sting result in swelling?

Why does a wasp sting result in swelling?

The venom of a wasp contains histamine, sarotonin acetylecholine and severaler kinins. These chemical compounds cause dilatation and increased permeability of blood capillaries, leading to oozing of a fluid.This causes local redness and swelling.

Funny Logic

  • The sting presses one into immediate action-to apply an antidote on the right spot.

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