• atrial
  • Because of the L-looping of the ventricles in this condition, the usual posterior position of the AV node is prevented from reaching the interventricular septum because of the malalignment of the atrial and inlet ventricular septa. (medscape.com)
  • valves
  • The development of the vertebrate heart can be considered an additive process, in which additional layers of complexity have been added throughout the evolution of a simple structure (linear heart tube) in the form of modular elements (atria, ventricles, septa, and valves). (ahajournals.org)
  • posterior
  • Besides the cerebellar hypoplasia, cysts are commonly found in the posterior cranial fossa, the ventricles and the cisterna magna are dilated/enlarged, and Dandy-Walker malformation is present. (wikipedia.org)