Quote Originally Posted by gerry the neck View Post
The only exceptions to this are the brain, which isn’t served by the nervous system, and the nerves themselves, which don’t have other nerves dedicated to warning of any threats to the nervous system. Each nerve is dedicated to a particular area, and it’s sole purpose is to report on that area. It is not capable of reporting an injury to itself, because it would need a separate independently functioning nerve to do this, and it doesn’t have one.
This is not entirely true. Nerves have the nervi nervorum- which refers to nerves which occur in the outside connective tissue of the main nerve which have the sole role of monitoring and protecting the main nerve. The nervi nervorum can report nerve pain itself.

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