Distribution and morphology of ventricular bands in the hearts of ringed seals

Abstract In contrast to studies on domestic animals, few reports describe ventricular bands in wildlife, and none in aquatic mammals. Ventricular bands in the endangered Saimaa ringed seal ( Pusa hispida saimensis ) and the Baltic ringed seal ( Pusa hispida botnica ) were examined as part of an ongo...

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Bibliographic Details
Published in:Anatomia, Histologia, Embryologia
Main Author: Laakkonen, Juha
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2021
Subjects:
Online Access:http://dx.doi.org/10.1111/ahe.12717
https://onlinelibrary.wiley.com/doi/pdf/10.1111/ahe.12717
https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ahe.12717
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Summary:Abstract In contrast to studies on domestic animals, few reports describe ventricular bands in wildlife, and none in aquatic mammals. Ventricular bands in the endangered Saimaa ringed seal ( Pusa hispida saimensis ) and the Baltic ringed seal ( Pusa hispida botnica ) were examined as part of an ongoing research on the comparative anatomy of ringed seal subspecies. The dissections illustrated that a varying number of thin or thick ventricular bands from the papillary muscles to the ventricular walls were visible in the ventricles of all ringed seal specimens examined. The histological appearance of the ventricular bands was characterized by a fibromuscular pattern.