spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by JONES, H. D.
Right arrow Search for Related Content
PubMed
Right arrow Articles by JONES, H. D.
Journal of Experimental Biology 140,257-271 (1988)
Published by Company of Biologists 1988

In Vivo Cardiac Pressure and Heart Rate, and Heart Mass, of Busycon Canaliculatum (L.)

H. D. JONES 1

1 Department of Zoology, University of Rhode Island, Kingston, RI02881, USA; Department of Environmental Biology, University of Manchester, Manchester, M13 9PL, UK.

In vivo cardiac pressure and heart rate, and relative heart mass, have been measured in Busycon canaliculatum. Base pressure was about l.3cmH2O above ambient and effectively the same in the ventricle, atrium, pericardium and veins. Ventricular systolic pressures were very variable. Highest pressure was over 80cmH2O, but sustained levels were lower, up to about 40cmH2O. Heart rate was also very variable, 5-15 beats min-1. Heart mass was about 0.19% of body mass. Cardiac refilling, control and power output are discussed.

Key words: heart, heart mass, heart rate, cardiac pressures, cardiac power, Busycon

Accepted on May 26, 1988






© The Company of Biologists Ltd 1988