SYMPATHETIC VASODILATOR OUTFLOW.

Abstract

Sympathetic vasodilator nerves to the skeletal muscles in dogs were activated by: (1) Electrical hypothalamic stimulation in anaesthetized dogs; (2) electrical hypothalamus stimulation in unanaesthetized dogs by chronically implanted electrodes; and (3) external stimuli (firing shot) to unanesthetized dogs. Activation of sympathetic vasodilator nerves seems to be associated with a behavior reaction pattern that could be interpreted as due to fear. The occurrence of sympathetic vasodilator fibers to the skeletal muscles of various species was investigated. Vasodilator fibers were found in the five different species of beasts studied, but not in 7 species of apes and lemurs investigated. The observation has a bearing on the undissolved question concerning the existence of sympathetic vasodilator fibers to the skeletal muscles in man. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 13, 1963
Accession Number
AD0623792

Entities

People

  • Borje Uvnas

Tags

DTIC Thesaurus Topics

  • Anatomy
  • Biological Sciences
  • Electrodes
  • Hypothalamus
  • Medical Equipment And Supplies
  • Muscles
  • Observation
  • Prostheses And Implants
  • Prosthesis Fitting
  • Prosthetics
  • Skeletal Muscle
  • Therapy

Readers

  • Cardiovascular Physiology