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Avian ventilatory responses to dynamic CO2 signals

Avian ventilatory responses to dynamic CO2 signals Vo 39, No. 1, July Printed in U.S. Avian ventilator-y D. Department Department responses to dynamic College of Georgia, Augusta, Georgia 30902; Ohio State University, Columbus, Ohio 43210 A4edical CO, signals of Ylpsiolog~, of P&siolou, , D. , KUP;Z. Avian ventilatory responses to Hornbein et a (8) have shown that the carotid receptors dynamic CO, signals. J. App Physio 39( 1) : ‘129-134. 19X.respond to CO2 oscillations in the blood. Others (2, 3) This study uses an awake unidirectionally ventilated avian prepahave shown reflex effects in response to transient changes ration to examine the effects of dynamic CO2 signals on the in CO2 input to the carotid bodies. In humans when the respiratory drive. Results show &at minute ventilation is afnormal time course of the alveolar Pcoz is altered by tube fected by both I) mean CO:! Ze~:l 2) amplitude of CO2 oscilbreathing a change in the mean ventilation occurs prolations at the frequency of b? eathing. An increase in mean CO2 vided that the chemoreceptors are sensitized to CO2 by level increased minute vermlation. Comparisons of the effects of hypoxia (6). In the cat the ventilatory effects of chemoCO2 oscillations at the same mean CO2 level, however, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Physiology The American Physiological Society

Avian ventilatory responses to dynamic CO2 signals

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Publisher
The American Physiological Society
Copyright
Copyright © 1975 the American Physiological Society
ISSN
8750-7587
eISSN
1522-1601
Publisher site
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Abstract

Vo 39, No. 1, July Printed in U.S. Avian ventilator-y D. Department Department responses to dynamic College of Georgia, Augusta, Georgia 30902; Ohio State University, Columbus, Ohio 43210 A4edical CO, signals of Ylpsiolog~, of P&siolou, , D. , KUP;Z. Avian ventilatory responses to Hornbein et a (8) have shown that the carotid receptors dynamic CO, signals. J. App Physio 39( 1) : ‘129-134. 19X.respond to CO2 oscillations in the blood. Others (2, 3) This study uses an awake unidirectionally ventilated avian prepahave shown reflex effects in response to transient changes ration to examine the effects of dynamic CO2 signals on the in CO2 input to the carotid bodies. In humans when the respiratory drive. Results show &at minute ventilation is afnormal time course of the alveolar Pcoz is altered by tube fected by both I) mean CO:! Ze~:l 2) amplitude of CO2 oscilbreathing a change in the mean ventilation occurs prolations at the frequency of b? eathing. An increase in mean CO2 vided that the chemoreceptors are sensitized to CO2 by level increased minute vermlation. Comparisons of the effects of hypoxia (6). In the cat the ventilatory effects of chemoCO2 oscillations at the same mean CO2 level, however,

Journal

Journal of Applied Physiology – The American Physiological Society

Published: Jul 1, 1975

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