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Vagal control of mammalian heart Juro Iriuchijima 1 1Department of physiology, Faculty of Medicine, University of Tokyo pp.22-32
Published Date 1964/2/15
DOI https://doi.org/10.11477/mf.2425902565
  • Abstract
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 1. The vagal control of the heart was stu-died by observing (1) cardiac output and regional blood flow in conscious and anesthet-ized dogs and (2) efferent cardiac vagal discharge in anesthetized dogs.

 2. Under anesthesia with morphine, chlo-ralose and urethane, as in conscious state, efferent vagal impulses were incessantly sent to the heart. The reflex change of this discharge of impulses affected heart rate considerably.

 3. In contrast to the cardiac sympathetic nerves in which evoked discharge can be induced nonspecifically by stimulating any sensory nerve, the cardiac vagus was excited only by stimulating the sinus nerve. Stimu-lation of other nerves such as the brachial and saphenous nerves nonspecifically inhibi-ted spontaneous impulses in the cardiac vagus.


Copyright © 1964, THE ICHIRO KANEHARA FOUNDATION. All rights reserved.

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電子版ISSN 1883-5503 印刷版ISSN 0370-9531 金原一郎記念医学医療振興財団

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