Behavioral responses to painful stimuli require peripheral sensory neurons called nociceptors. Electrophysiological studies show that most C-fiber nociceptors are polymodal (i.e., respond to multiple ...

The myelin sheath is a protective covering that surrounds fibers called axons, which are the long thin projections that extend from the main body of a nerve cell or neuron. This sheath is composed of ...

Yes, when someone pulls your hair – if you have enough hair that someone can pull it – it hurts. But the truth of why that is, and some of the how much and some of the how, has only recently become ...