Morphology of moderator bands (septomarginal trabecula) in porcine heart ventricles

Anatomia, histologia, embryologia
A S Gulyaeva, I M Roshchevskaya

Abstract

The morphology of moderator bands in both heart ventricular cavities was examined on macro- and microscopic levels in 14 six-month-old Landrace pigs. One transverse moderator band, measuring 2.9 ± 0.6 mm in diameter, was located between the septum and the free wall of the right ventricular cavity. On cross-section, clumps of conductive cells were found at the periphery of the moderator band and in its central part around the blood vessels. Large amounts of muscle fibres were identified. The left ventricular cavity contained moderator bands in the form of thin cords, measuring 1.05 ± 0.09 mm in diameter and located mostly between the interventricular septum and the papillary muscles. Conductive tissue was represented by clumps of Purkinje cells, surrounded by myocardial fibres. The proportion of conductive cells and muscle fibres in the moderator bands was approximately the same. Owing to different amounts of conductive cells and muscle fibres in the bands, we assume that moderator bands in the right and left ventricles play different primary functional roles. Our results were compared with previous data on pigs and other ungulate animal species.

References

Dec 1, 1984·British Heart Journal·L M GerlisD F Dickinson
Nov 1, 1982·Veterinary Pathology·F S Hsu, S J Du
Sep 2, 1998·Journal of Anatomy·C Millington-SandersC Stolinski
Oct 3, 1998·Journal of Anatomy·S J CrickR H Anderson
Aug 7, 2003·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·M KervancioğluM Deniz
Dec 3, 2003·Surgical and Radiologic Anatomy : SRA·M DenizE S Hatipoglu
Oct 16, 2004·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Arthur Keith, Martin W Flack
Feb 20, 2008·Surgical and Radiologic Anatomy : SRA·Marios LoukasRobert Jordan
Apr 3, 2010·Morphologie : Bulletin De L'Association Des Anatomistes·H RochaN Wafae

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Citations

Dec 11, 2013·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Faisal F SyedSamuel J Asirvatham
Nov 27, 2014·Texas Heart Institute Journal·Anil K GoliRoger Carrillo
Nov 4, 2016·Anatomia, histologia, embryologia·Y KimuraN Machida
Dec 28, 2018·Anatomia, histologia, embryologia·Mahmoud Abdelghaffar Emam, Ahmed I Abo-Ahmed
Jan 23, 2019·Anatomia, histologia, embryologia·Sérgio Ricardo Rios NascimentoSamara Urban de Oliva
Oct 11, 2019·Anatomy & Cell Biology·Sung Deuk Kim
Feb 16, 2017·Case Reports in Cardiology·Jin-Yi LiGuo-Qiang Zhong
Dec 21, 2021·Anatomia, histologia, embryologia·Baran ErdemSevinç Ateş

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