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[Pain and painkillers. 1. Neurophysiologic component].

A H Schuurs1, J A Baart, M P Duyx

  • 1Academisch Centrum Tandheelkunde Amsterdam (ACTA).

Nederlands Tijdschrift Voor Tandheelkunde
|March 1, 1991
PubMed
Summary

Pain signals travel between nerve cells using chemical messengers across synapses. A

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Area of Science:

  • Neuroscience
  • Pain Physiology

Context:

  • Pain impulses are transmitted via thin nerve fibers.
  • Synaptic transmission involves neurotransmitters and neuromodulators.

Purpose:

  • To explain the neural pathways of pain transmission.
  • To describe the 'gate control' mechanism in the spinal cord.

Summary:

  • Pain signals travel from nerve to nerve via neurotransmitters at synapses.
  • The dorsal horn of the spinal medulla acts as a 'gate' controlling pain signal transmission to the brain.
  • This gate is modulated by the substantia gelatinosa, thick nerves, and descending pathways.

Impact:

  • Provides a foundational understanding of pain signal processing.
  • Highlights key anatomical structures involved in pain modulation.

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