Large segmental differences in the spinal projections to the periaqueductal gray in the cat

Leonora J. Mouton, Veronique G.J.M. VanderHorst, Gert Holstege

Research output: Contribution to journalArticleAcademic

14 Citations (Scopus)

Abstract

The periaqueductal gray (FAG) is involved in motor activities, such as movements of the neck, back and hind limbs, cardiovascular regulation, micturition, vocalization, and mating behavior, as well as in nociception control. To accomplish these functions the FAG uses information from other parts of the limbic system, from the lower brainstem, and from the spinal cord. To study the ascending projections from the spinal cord to the PAG, tracer was injected in different parts of the FAG, and the number of retrogradely labeled neurons were counted for each spinal segment. Results show that large segmental differences exist in the number of FAG projecting neurons throughout the length of the spinal cord and that different parts of the spinal cord project to specific areas in the FAG. (C) 1997 Elsevier Science Ireland Ltd.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalNeuroscience Letters
Volume238
Issue number1-2
DOIs
Publication statusPublished - 28-Nov-1997

Keywords

  • periaqueductal gray
  • spinal cord
  • spinomesencephalic tract
  • wheat germ agglutinin-conjugated horseradish peroxidase
  • emotional motor system
  • cat
  • SPINOMESENCEPHALIC TRACT
  • AFFERENT-PROJECTIONS
  • RAT
  • NEURONS
  • TERMINATION
  • TRANSPORT
  • REGIONS
  • PRIMATE
  • MONKEY
  • ORIGIN

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