Breathing pattern in anesthetized chickens: CO2 inhalation and vagotomy

The breathing patterns of 20 anesthetized chickens were studied during progressive suppression of intrapulmonary chemoreceptors (IPC) by various concentrations of CO2 and following bilateral vagotomy. The vagotomy breathing pattern, characterized by a marked accentuation of expiratory times with pro...

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Veröffentlicht in:	Comparative biochemistry and physiology. A, Comparative physiology Comparative physiology, 1985, Vol.81 (1), p.185-190
Hauptverfasser:	Hambolu, J.O, Schumacher, K.G, Fedde, M.R
Format:	Artikel
Sprache:	eng
Schlagworte:	Air breathing Anesthesia Animals Biological and medical sciences Blood Gas Analysis carbon dioxide Carbon Dioxide - pharmacology Chickens Fundamental and applied biological sciences. Psychology Hydrogen-Ion Concentration Inhalation - drug effects Kinetics Male receptors respiration Respiration - drug effects Respiratory system: anatomy, metabolism, gas exchange, ventilatory mechanics, respiratory hemodynamics Vagotomy Vertebrates: respiratory system
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Zusammenfassung:	The breathing patterns of 20 anesthetized chickens were studied during progressive suppression of intrapulmonary chemoreceptors (IPC) by various concentrations of CO2 and following bilateral vagotomy. The vagotomy breathing pattern, characterized by a marked accentuation of expiratory times with prolonged expiratory pauses, was markedly different from that induced by CO2 inhalation. Removal of neural input to the central respiratory centers from IPC does not appear to be solely responsible for the altered breathing pattern following vagotomy in birds.
ISSN:	0300-9629
DOI:	10.1016/0300-9629(85)90286-5