This may sound weird but I honestly don’t know. How are there different “pain levels”? How do we feel pain in our bones (are there nerves in bones? I really don’t mean to sound dumb!). How do we differentiate between hot, cold, a regular touch, or a prick and so on.
In: Biology
We have different types of sensors for different sensations; they’re all connected to nerves to relay signals back to our brain but the thing on the end is different for different sense.
Touch sensors measure pressure.
Temperature sensors measure heat flow (in or out).
Pain sensors measure “damage”, basically. You do have nerves coating your bones, and some (but not all) other interior stuff.
Taste & smell sensors react to particular chemicals.
We also have a lot of ability to aggregate signals…lots of touch sensors working together gives us texture, lots of taste & smell sensors together give us particular overall tastes, etc.
Latest Answers