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The connection between the papillary muscles and leaflets of the tricuspid valve
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Abstract
The present study was performed on a group of 107 formalin-fixed adult human hearts. The valves and papillary muscles were classified according to a scheme for human hearts drawn up earlier. The types of connection between leaflets of the tricuspid valve and the papillary muscles were classified according to a scheme drawn up earlier for vertebrates. We observed 3 types of connection between leaflets of the tricuspid valve and the papillary muscles in the group studied. The muscular and membranous connections were not linked with any one type of tricuspid valve. Atypical forms of distribution of the tendinous chords of the right ventricle were observed. It was found that valves with a higher number of leaflets were (with the exception of type 0) provided with a smaller number of tendinous chords. Atavistic features and atypical forms of distribution of the tendinous chords are present in a small percentage of samples of the human right valvular apparatus.
Abstract
The present study was performed on a group of 107 formalin-fixed adult human hearts. The valves and papillary muscles were classified according to a scheme for human hearts drawn up earlier. The types of connection between leaflets of the tricuspid valve and the papillary muscles were classified according to a scheme drawn up earlier for vertebrates. We observed 3 types of connection between leaflets of the tricuspid valve and the papillary muscles in the group studied. The muscular and membranous connections were not linked with any one type of tricuspid valve. Atypical forms of distribution of the tendinous chords of the right ventricle were observed. It was found that valves with a higher number of leaflets were (with the exception of type 0) provided with a smaller number of tendinous chords. Atavistic features and atypical forms of distribution of the tendinous chords are present in a small percentage of samples of the human right valvular apparatus.
Keywords
tricuspid valve; papillary muscles; tendinous chords; morphology; human heart
Title
The connection between the papillary muscles and leaflets of the tricuspid valve
Journal
Issue
Article type
Original article
Pages
322-328
Published online
2006-09-18
Page views
554
Article views/downloads
1666
Bibliographic record
Folia Morphol 2006;65(4):322-328.
Keywords
tricuspid valve
papillary muscles
tendinous chords
morphology
human heart
Authors
Skwarek M
Dudziak M
Hreczecha J
Grzybiak M