Say you get an injection and the site has been anesthetized beforehand with a topical numbing cream, why is it that you can still feel the pressure? Is the pressure sensation not associated with nerves? If not, how does your brain detect pressure sensations?
P.S. I’m not sure if “numbed” is a word but I couldn’t think of another way to say it lol.
In: Biology
The short answer is that you have a bunch of different groups of nerves that do different things. Some of them send signals for your muscles to move, some of them detect pain, some of them detect hard pressure, some of them detect light touch, some detect temperature. And they’re not all in the same place. So doctors numb the pain ones and leave the rest alone.
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