Talk:Tricuspid valve

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[edit] Number of leaflets

The text of the citation (Van Pragh) goes: " The number of tricuspid valve leaflets is variable. In infancy, the TV often appears only to have two leaflets, parietal and septal. But throughout most of adolescent and adult life, the TV has three leaflets because the parietal (free wall) leaflet is subdivided into anterior and posterior portions by the chordal insertions from the anterior papillary muscle. In old age, particulary after several bouts of congestive heart failure, , an infundibular leaflet appears - just beneath the conal septum and between the anterior and septal leaflets of the TV." See also Robert H. Anderson and Anton E. Becker: Cardiac Anatomy, for a further discussion. They are not so sure as Van Pragh, but have an interesting discourse about the nature of the tricuspid valve. --Ekko 07:35, 13 October 2006 (UTC)