Bulletin of Experimental Biology and Medicine

, Volume 88, Issue 5, pp 1235–1238 | Cite as

Circulatory responses to selective activation of myelinated and unmyelinated fibers of the aortic nerve

  • E. P. Anyukhovskii
  • G. G. Beloshapko
  • S. A. Dremin
Physiology
  • 18 Downloads

Abstract

In experiments on thoracotomized cats the arterial blood pressure (BP), cardiac frequency, force of contraction of a fragment of the left ventricle, and the resistance of the blood vessels of the hind limb were recorded. Myelinated and unmyelinated fibers (A and C fibers) of the left aortic nerve were stimulated selectively. Lowering of BP in response to stimulation of A fibers was observed to take place mainly through a decrease in the peripheral vascular resistance, whereas during excitation of C fibers the cardiac component of the reflex — a reduction in the frequency and force of cardiac contractions — was most marked.

Key words

nervous regulation of the circulation myelinated and unmyelinated fibers vascular baroreceptors 

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Copyright information

© Plenum Publishing Corporation 1980

Authors and Affiliations

  • E. P. Anyukhovskii
  • G. G. Beloshapko
  • S. A. Dremin

There are no affiliations available

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