Response of medial medullary neurons to preoptic and scrotal thermal stimulation and to preoptic microinjection of capsaicin

Y. Ishikawa, T. Nakayama, K. Kanosue, K. Matsumura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

1. 1. The neuronal discharges of medullary neurons were recorded in urethane-anaesthetized rats in response to three stimulations which produced tail vasodilation, i.e. preoptic warming, scrotal warming and preoptic microinjection of capsaicin. 2. 2. The number of neurons responding to the three stimulations in the same direction amounted to approx. 70% of the total number studied. The number of neurons responding with facilitation was about 5 times as many as those responding with inhibition. 3. 3. These medullary neurons are mostly located in the nucleus reticularis gigantocellularis.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalJournal of Thermal Biology
Volume9
Issue number1-2
DOIs
Publication statusPublished - 1984 Apr

Keywords

  • POAH cold-senstivie neuron
  • POAH warm-sensitive neuron
  • Preoptic area and anterior hypothalamus (POAH)
  • capsaicin
  • medullary neuron
  • nucleus reticularis gigantocellularis (NGC)
  • preoptic warming
  • rats
  • scrotal warming
  • tail vasodilation

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Agricultural and Biological Sciences(all)
  • Developmental Biology

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