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Pain, Perception and Consciousness. A review and explanation in terms of statistical concepts.

Gray's Anatomy helps put matters into perspective. The bare nerve ending set up seems to serve basic pain receptors (nociceptors) as well as the temperature sensitive receptors (thermoreceptors). Both these types can be A delta (sometimes called group III) or C fibres (sometimes called group IV). For a helpful table comparing these different classification methods along with fibre diameter, conduction velocities, and myelination see Bonica's adaptation (p 30) of J Nolte (1999).