Intrinsic properties of an in situ turtle heart (Emydura signala) preparation perfused via both atria

Franklin, CE (1994) Intrinsic properties of an in situ turtle heart (Emydura signala) preparation perfused via both atria. Comparative Biochemistry and Physiology -- Part A: Physiology, 107 3: 501-507. doi:10.1016/0300-9629(94)90032-9


Author Franklin, CE
Title Intrinsic properties of an in situ turtle heart (Emydura signala) preparation perfused via both atria
Journal name Comparative Biochemistry and Physiology -- Part A: Physiology   Check publisher's open access policy
ISSN 0300-9629
Publication date 1994
Sub-type Article (original research)
DOI 10.1016/0300-9629(94)90032-9
Volume 107
Issue 3
Start page 501
End page 507
Total pages 7
Language eng
Subject 1314 Physiology
1312 Molecular Biology
1303 Specialist Studies in Education
Abstract The intrinsic properties of the heart of Emydura signata were investigated using an in situ, perfused heart preparation. Unlike previous perfused turtle heart preparations, both the left and right atria were perfused and all three outflow tracts cannulated. The heart preparation developed a stable heart rate of 28.8 bpm and generated a physiological power output. The heart was sensitive to filling pressure and showed a marked Starling response. Stroke volume was maintained when output pressure was increased from 2.5 to 4.6 kPa; higher output pressures resulted in a decrease in stroke volume. Pulmonary artery flow was the most sensitive to changes in output pressure. Stroke volume had a marked effect on intra-cardiac mixing of systemic and pulmonary derived perfusate.
Keyword Cardiac output
Heart perfusion
Hearts
Shunting
Starling effect
Turtle
Ventricle
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 10 times in Scopus Article | Citations
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Created: Tue, 29 Mar 2016, 17:25:43 EST by Gail Walter