[Catecholamine-containing sympathetic spinal neurons innervating the feline heart]

Biull Eksp Biol Med. 1989 Jun;107(6):645-7.
[Article in Russian]

Abstract

The present study determined that a population "nonclassical" sympathetic neurons in cats spinal cord contains catecholamines. They are localized in the central, dorsomedial, and lateral regions of the ventral horn of T1-T5 segments of the spinal cord. Electrophysiological study indicated that axonal conduction velocity is 7.3 +/- 0.5 m/s (ranging from 3.6 to 17.2 m/s). Possible functional roles of catecholamine-containing neurons of spinal cord include involvement in sympathetic control of cardiac cycle duration.

Publication types

  • English Abstract

MeSH terms

  • Adrenergic beta-Antagonists / pharmacology
  • Animals
  • Atropine / pharmacology
  • Axons / drug effects
  • Axons / physiology
  • Catecholamines / physiology*
  • Cats
  • Electric Stimulation
  • Ganglionic Blockers / pharmacology
  • Heart / drug effects
  • Heart / innervation*
  • Neurons / drug effects
  • Neurons / physiology*
  • Propanolamines / pharmacology
  • Quaternary Ammonium Compounds / pharmacology
  • Spinal Cord / drug effects
  • Spinal Cord / physiology*
  • Sympathetic Nervous System / drug effects
  • Sympathetic Nervous System / physiology*

Substances

  • Adrenergic beta-Antagonists
  • Catecholamines
  • Ganglionic Blockers
  • Propanolamines
  • Quaternary Ammonium Compounds
  • talinolol
  • pentamine
  • Atropine