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A comparative study of the morphology of mammalian chordae tendineae of the mitral and tricuspid valves

Hutchison, J. and Rea, P. (2015) A comparative study of the morphology of mammalian chordae tendineae of the mitral and tricuspid valves. Veterinary Record Open, 2(2), e000150. (doi: 10.1136/vetreco-2015-000150)

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Abstract

It is assumed that the human heart is almost identical to domestic mammalian species, but with limited literature to support this. One such area that has been underinvestigated is that of the subvalvular apparatus level. The authors set out to examine the morphology of the subvalvular apparatus of the mammalian atrioventricular valves through gross dissection and microscopic analysis in a small-scale pilot study. The authors examined the chordae tendineae of the mitral and tricuspid valves in sheep, pig and bovine hearts, comparing the numbers of each of these structures within and between species. It was found that the number of chordae was up to twice as many for the tricuspid valve compared with the mitral valve. The counts for the chordae on the three valve leaflets of the tricuspid valve, as well as the two mitral valve leaflets, were almost identical between species. However, the chordae attaching onto the posterior papillary muscle were almost double compared with the septal and anterior papillary muscles. Histological analysis demonstrated an abrupt transitional zone. In conclusion, the authors have shown that there is no gross morphological difference between, or within, these species at the subvalvular apparatus level.

Item Type:	Articles
Status:	Published
Refereed:	Yes
Glasgow Author(s) Enlighten ID:	Rea, Professor Paul
Authors:	Hutchison, J., and Rea, P.
College/School:	College of Medical Veterinary and Life Sciences > School of Life Sciences
Journal Name:	Veterinary Record Open
Journal Abbr.:	Vet Rec Open
Publisher:	BMJ Publishing Group
ISSN:	2052-6113
ISSN (Online):	2052-6113
Copyright Holders:	Copyright © 2015 The Authors
First Published:	First published in Veterinary Record Open 2(2):e000150
Publisher Policy:	Reproduced under a Creative Commons License

University Staff: Request a correction | Enlighten Editors: Update this record

References

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Deposit and Record Details

ID Code:	112856
Depositing User:	Professor Paul Rea
Datestamp:	01 Dec 2015 12:28
Last Modified:	13 Jun 2018 08:33
Date of acceptance:	22 October 2015
Date of first online publication:	26 November 2015
Date Deposited:	15 December 2015
Data Availability Statement:	No