Translations:Herz/111/en

Blood passes from the left atrium into the left ventricle via the ostium atrioventriculare sinistrum.. The ostium atrioventriculare can be closed by the valva atrioventricularis sinistra. The left ventricle also has an inflow and outflow pathway. The inflow passes along the posterior wall, the left lateral wall as well as the apical section. The smooth-walled outflow tract is located near the septum interventriculare and continues into the vestibulum aortae. It consists largely of musculature (pars muscularis). The ostium aortae is the opening between the aortic outflow tract of the left ventricle and the aorta. The wall of the left ventricle is about three times as thick as that of the right ventricle and thus belongs to the high-pressure system.