Abstract
1. Studies were made on sheep whose pulmonary and systemic circulations were artificially perfused at constant rates, with complete functional exclusion of the heart. These sheep were anæsthetized with sodium barbitone.2. In seven such sheep rhythmic variations of mean aortic pressure were encountered in spite of a constant rate of perfusion of the systemic circulation, and in five others there were rhythmic variations of mean inferior vena caval pressure. Administration of further sodium barbitone readily suppressed these rhythmic pressure changes, usually without significant alteration of the level of mean aortic or inferior vena caval pressure.3. These findings are discussed in relation to previous literature.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Quarterly journal of experimental physiology and cognate medical sciences
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
