They play a pivotal role in how you feel and react topain.

Pain resulting from any cause is messaged in this way.

That way your brain can fully process the pain and eventually send communication back to block further pain signals.

Woman icing her knee with an ice pack

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There are two main types of nerve fibers.

Purves D, Augustine GJ.Nociceptors.

Sunderland, 2001: Sinauer Associates.

University of Texas McGovern Medical School.Chapter 6: Pain Principles.

Ngassapa DN.Comparison of functional characteristics of intradental A- and C-nerve fibres in dental pain.East Afr Med J.

1996;73(3):207-9.

(2014).University of Connecticut Health Center: Nociceptors and the Perception of Pain.