Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE
Shell closure in Arctica islandica is followed by an exponential decrease in the oxygen tension of the mantle cavity water and is accompanied by an initial increase in heart rate which is followed at lower oxygen tensions by a brady-cardia. Prior to shell opening there is a slight increase in heart...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.543.882 2023-05-15T15:22:33+02:00 Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE Arctica Islandica (l A. C. Taylor Port Erin Isle Of Man The Pennsylvania State University CiteSeerX Archives 1975 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.543.882 http://jeb.biologists.org/content/64/3/751.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.543.882 http://jeb.biologists.org/content/64/3/751.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://jeb.biologists.org/content/64/3/751.full.pdf text 1975 ftciteseerx 2016-01-08T11:11:53Z Shell closure in Arctica islandica is followed by an exponential decrease in the oxygen tension of the mantle cavity water and is accompanied by an initial increase in heart rate which is followed at lower oxygen tensions by a brady-cardia. Prior to shell opening there is a slight increase in heart rate before any movement of the shell valves can be detected. However, once the shell opens and pumping activity recommences there is a rapid increase in heart rate, often to levels above normal. Perfusion of the mantle cavity with water of high and low oxygen tension resulted in the cardiac responses normally associated with shell opening and closure. Recordings of the POf of the blood in the ventricle, made simul-taneously with cardiac recordings, showed that the changes in heart rate were recorded only after the POg of the blood had changed. These ex-periments suggest that changes in the POf of the mantle cavity water may be primarily responsible for the cardiac responses to shell closure in Arctica. Text Arctica islandica Unknown |
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Open Polar |
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ftciteseerx |
language |
English |
description |
Shell closure in Arctica islandica is followed by an exponential decrease in the oxygen tension of the mantle cavity water and is accompanied by an initial increase in heart rate which is followed at lower oxygen tensions by a brady-cardia. Prior to shell opening there is a slight increase in heart rate before any movement of the shell valves can be detected. However, once the shell opens and pumping activity recommences there is a rapid increase in heart rate, often to levels above normal. Perfusion of the mantle cavity with water of high and low oxygen tension resulted in the cardiac responses normally associated with shell opening and closure. Recordings of the POf of the blood in the ventricle, made simul-taneously with cardiac recordings, showed that the changes in heart rate were recorded only after the POg of the blood had changed. These ex-periments suggest that changes in the POf of the mantle cavity water may be primarily responsible for the cardiac responses to shell closure in Arctica. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Arctica Islandica (l A. C. Taylor Port Erin Isle Of Man |
spellingShingle |
Arctica Islandica (l A. C. Taylor Port Erin Isle Of Man Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE |
author_facet |
Arctica Islandica (l A. C. Taylor Port Erin Isle Of Man |
author_sort |
Arctica Islandica (l |
title |
Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE |
title_short |
Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE |
title_full |
Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE |
title_fullStr |
Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE |
title_full_unstemmed |
Printed in Great Britain THE CARDIAC RESPONSES TO SHELL OPENING AND CLOSURE IN THE BIVALVE |
title_sort |
printed in great britain the cardiac responses to shell opening and closure in the bivalve |
publishDate |
1975 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.543.882 http://jeb.biologists.org/content/64/3/751.full.pdf |
genre |
Arctica islandica |
genre_facet |
Arctica islandica |
op_source |
http://jeb.biologists.org/content/64/3/751.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.543.882 http://jeb.biologists.org/content/64/3/751.full.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766353200656416768 |