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Chordae tendineae (right heart, anatomy)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The chordae tendineae of the right heart have been classified into the following groups:

  • fan-shaped: single chordae stem diverges directly from the papillary muscle to form a number of fine chordae which attach to the edges of the commisures between the leaflets
  • rough zone: the main stem of the chordae divides into three from the papillary muscle to insert into:
    • the edge of the free margin of the leaflet
    • the inner limit of the roughened suface on the ventricular side of a given leaflet
    • a point between the preceeding attachments
  • free edge: single chordae arising from either end of a papillary muscle and inserting roughly into the mid-point of a given leaflet
  • deep:
    • do not diverge until very close to the valve leaflet
    • insert into rough zone or area slighly nearer the annulus on the ventricular surface of each leaflet - the clear zone
  • basal:
    • extremely variable shape
    • insert into the basal part of the ventricular surface of the leaflet

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