Attachment of the Chordae to the Tricuspid Valve – A Study
Journal Title: Scholars International Journal of Anatomy and Physiology - Year 2018, Vol 1, Issue 2
Abstract
Abstract:The structures supporting the tricuspid valve leaflets are called chordae tendinae. They are collagenous. They are also known as tendinous cords. The tricuspid valve cusps are attached into the atria, during ventricular contraction, by the chordae. Tension in the chordae tendinae is regulated by specialized muscles called papillary muscles which contract along with the ventricular muscle. The chordae tendinae are attached to the papillary muscles.The chordae tendinae have been found to be involved in causing valve dysfunction and have shown variations in their number and attachment causing tricuspid valve dysfunction. Hence, the study was undertaken to describe their morphology and report any variations. 96 hearts were studied, which were collected from cadavers allotted to undergraduate students for dissection, over a period of time. Hearts were removed by dissection method. Window dissection of the anterior ventricular wall and the posterior right ventricular wall exposes both the papillary muscles & the chordae tendinae. The following types of Chordae tendinae were observed. They were 5 in number and were as follows: Basal chordae, Fan shaped chordae, free edge chordae, rough zone chordae and Deep chordae. No abnormal deviations were observed. Keywords: Chordae tendinae, papillary muscles, Tricuspid valve muscles.
Authors and Affiliations
Balachandra N, B. R Ramesh
Keywords
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