Morphological classification of the septomarginal trabecula in humans.

Abstract:

:Although the septomarginal trabecula is a well-known anatomical structure, there continue to be different ways of studying it. In this study, we dissected the muscle bundles that form it, and this has enabled us to present a new classification based on the origin, path, and termination of these bundles. This study was conducted on 99 hearts removed from the cadavers of adult humans aged 18 to 82 years, of which 72 were male and 27 were female. The septomarginal trabecula presents two components in its composition: one septal and the other septal- papillary, i.e. extending from the septum to the anterior papillary muscle. The septal component may be visible macroscopically, forming a fleshy third-order column, or may only be visible by means of dissection. The septal-papillary component is always visible and is a fleshy column of either second-order or third- -order type. Another parameter takes into consideration the papillary-parietal connection, i.e. the junction of the septomarginal trabecula with the anterior papillary muscle, which may be single or present ramifications to the anterior wall and/or apex. Taking these criteria as references, we have classified the septomarginal trabecula into eight types.

journal_name

Folia Morphol (Warsz)

journal_title

Folia morphologica

authors

Bandeira ST,Wafae GC,Ruiz C,Nascimento SR,Fernandes JR,Wafae N

subject

Has Abstract

pub_date

2011-11-01 00:00:00

pages

300-4

issue

4

eissn

0015-5659

issn

1644-3284

journal_volume

70

pub_type

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