Right Ventricle

  • Annette Vegas


  • The normal RV is a crescent-shaped chamber that curves over the LV.

  • The RV may be described by its inflow (sinus), outflow (conus) tract, and apical portions that relate to their separate embryologic origins. The heavily trabeculated RV inflow portion begins inferoposterior to the TV. The smooth-walled outflow portion is antero-superior and is the RV infundibulum (conus arteriosus) that ends at the pulmonic valve (PV).

  • An encircling muscular band of four distinct structures (parietal band, crista supraventricularis, septal band, moderator band) separates the RV regions. The moderator band between the anterior papillary muscle and septal wall is a prominent echodense structure that helps distinguish the RV from the LV.

  • RV is composed of a free wall, interventricular septum (IVS), and apex. The RV free wall is described as lateral, anterior, and inferior portions and, like the LV, is divided into basal, mid-, and apical segments.

  • There are three papillary muscles (PM), anterior PM (from anterior wall), posterior PM (from posterior wall), and a series of smaller septal papillae from the septal wall. Chordae tendinae pass from PM tips and septal wall to free margins and ventricular surfaces of all TV leaflets.

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Annette Vegas
    • 1
  1. 1.Professor of Anesthesiology, Former Director of Perioperative TEE, Department of AnesthesiaToronto General Hospital, University of TorontoTorontoCanada

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