open access

Vol 68, No 1 (2009)
ORIGINAL ARTICLES
Published online: 2008-11-25
Submitted: 2012-02-06
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Microscopic study of right fibrous annulus

M. Dudziak, M. Skwarek, J. Hreczecha, J. Jerzemowski, M. Grzybiak
Folia Morphol 2009;68(1):32-35.

open access

Vol 68, No 1 (2009)
ORIGINAL ARTICLES
Published online: 2008-11-25
Submitted: 2012-02-06

Abstract

The term annulus fibrous is still used in anatomical and clinical terminology but does not exist in anatomical nomenclature. This structure is proposed as an anatomical substrate for circus movement of excitation. Multiple cardiac damage after blunt chest trauma is rare, but usually affects the septal part of the right fibrous annulus. Histological observation confirms the results of our previous macroscopic study and shows that the most stable part of fibrous annulus is the septal part and the region of anterior angle of the right ventricle, and the most labile parts are the lateral and posterior angles of the right ventricle and the posterior part of the fibrous annulus. Our histological study shows that the right fibrous annulus is a heterogeneous structure and may play a role in changes of shape of the right atrio-ventricular ostium during human life.

Abstract

The term annulus fibrous is still used in anatomical and clinical terminology but does not exist in anatomical nomenclature. This structure is proposed as an anatomical substrate for circus movement of excitation. Multiple cardiac damage after blunt chest trauma is rare, but usually affects the septal part of the right fibrous annulus. Histological observation confirms the results of our previous macroscopic study and shows that the most stable part of fibrous annulus is the septal part and the region of anterior angle of the right ventricle, and the most labile parts are the lateral and posterior angles of the right ventricle and the posterior part of the fibrous annulus. Our histological study shows that the right fibrous annulus is a heterogeneous structure and may play a role in changes of shape of the right atrio-ventricular ostium during human life.
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Keywords

tricuspid valve; right atrio-ventricular ostium; human heart; morphology; morphometry

About this article
Title

Microscopic study of right fibrous annulus

Journal

Folia Morphologica

Issue

Vol 68, No 1 (2009)

Pages

32-35

Published online

2008-11-25

Bibliographic record

Folia Morphol 2009;68(1):32-35.

Keywords

tricuspid valve
right atrio-ventricular ostium
human heart
morphology
morphometry

Authors

M. Dudziak
M. Skwarek
J. Hreczecha
J. Jerzemowski
M. Grzybiak

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