Morphometric and flow indicator studies of the teleost heart
The structure of the heart of four species of Alaskan fishes (Thymallus arcticus, Esox lucius, Lota lota, and Catostomus catostomus) was examined in varying detail. The ventricle constitutes 0.07 to 0.09% of the body weight, 26 to 35% of which consists of an outer, cortical layer, and the balance a...
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Language: | English |
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Canadian Science Publishing
1975
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Online Access: | http://dx.doi.org/10.1139/z75-084 http://www.nrcresearchpress.com/doi/pdf/10.1139/z75-084 |
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crcansciencepubl:10.1139/z75-084 2024-03-03T08:43:35+00:00 Morphometric and flow indicator studies of the teleost heart Cameron, James N. 1975 http://dx.doi.org/10.1139/z75-084 http://www.nrcresearchpress.com/doi/pdf/10.1139/z75-084 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 53, issue 6, page 691-698 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1975 crcansciencepubl https://doi.org/10.1139/z75-084 2024-02-07T10:53:33Z The structure of the heart of four species of Alaskan fishes (Thymallus arcticus, Esox lucius, Lota lota, and Catostomus catostomus) was examined in varying detail. The ventricle constitutes 0.07 to 0.09% of the body weight, 26 to 35% of which consists of an outer, cortical layer, and the balance a spongy, trabeculated inner layer. Blood supply to the cortex comes exclusively from the coronary artery, whereas the inner layer is supplied by venous (deoxygenated) blood from the ventricular lumen. Flow indicator studies implied that the cortical layer receives about half as much blood per unit weight as the inner layer, but probably receives about the same amount of oxygen, since arterial blood contains roughly twice as much oxygen as does venous blood. Calculations of the probable limits for oxygen uptake of the ventricle are made on the basis of data in this study and in the literature. Article in Journal/Newspaper Catostomus catostomus Lota lota Thymallus arcticus lota Canadian Science Publishing Canadian Journal of Zoology 53 6 691 698 |
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Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Cameron, James N. Morphometric and flow indicator studies of the teleost heart |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The structure of the heart of four species of Alaskan fishes (Thymallus arcticus, Esox lucius, Lota lota, and Catostomus catostomus) was examined in varying detail. The ventricle constitutes 0.07 to 0.09% of the body weight, 26 to 35% of which consists of an outer, cortical layer, and the balance a spongy, trabeculated inner layer. Blood supply to the cortex comes exclusively from the coronary artery, whereas the inner layer is supplied by venous (deoxygenated) blood from the ventricular lumen. Flow indicator studies implied that the cortical layer receives about half as much blood per unit weight as the inner layer, but probably receives about the same amount of oxygen, since arterial blood contains roughly twice as much oxygen as does venous blood. Calculations of the probable limits for oxygen uptake of the ventricle are made on the basis of data in this study and in the literature. |
format |
Article in Journal/Newspaper |
author |
Cameron, James N. |
author_facet |
Cameron, James N. |
author_sort |
Cameron, James N. |
title |
Morphometric and flow indicator studies of the teleost heart |
title_short |
Morphometric and flow indicator studies of the teleost heart |
title_full |
Morphometric and flow indicator studies of the teleost heart |
title_fullStr |
Morphometric and flow indicator studies of the teleost heart |
title_full_unstemmed |
Morphometric and flow indicator studies of the teleost heart |
title_sort |
morphometric and flow indicator studies of the teleost heart |
publisher |
Canadian Science Publishing |
publishDate |
1975 |
url |
http://dx.doi.org/10.1139/z75-084 http://www.nrcresearchpress.com/doi/pdf/10.1139/z75-084 |
genre |
Catostomus catostomus Lota lota Thymallus arcticus lota |
genre_facet |
Catostomus catostomus Lota lota Thymallus arcticus lota |
op_source |
Canadian Journal of Zoology volume 53, issue 6, page 691-698 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z75-084 |
container_title |
Canadian Journal of Zoology |
container_volume |
53 |
container_issue |
6 |
container_start_page |
691 |
op_container_end_page |
698 |
_version_ |
1792499031728979968 |