part_of part of part of has potential to develop into has potential to develop into embryo cardiac ventricle heart tube developing anatomical structure primitive heart tube future cardiac ventricle primordial cardiac ventricle FMA:71006 future heart ventricle primitive ventricle of heart UBERON:0010226 primitive ventricle Multi-tissue structure that is part of the heart tube and will become the cardiac ventricle. UBERON:0006283 primordial ventricle presumptive cardiac ventricle heart tube early heart ventricle The embryonic ventricle or primitive ventricle of the developing heart gives rise to the trabeculated parts of the left and right ventricles. In contrast, the smooth parts of the left and right ventricles originate from the embryological bulbus cordis. The primitive ventricle becomes divided by a septum, the septum inferius or ventricular septum, which grows upward from the lower part of the ventricle, its position being indicated on the surface of the heart by a furrow. Its dorsal part increases more rapidly than its ventral portion, and fuses with the dorsal part of the septum intermedium. For a time an interventricular foramen exists above its ventral portion, but this foramen is ultimately closed by the fusion of the aortic septum with the ventricular septum[WP] EMAPA:16350 ZFA:0001719 SCTID:361524003 embryonic heart ventricle EHDAA2:0001531 Wikipedia:Embryonic_ventricle embryonic ventricle NCIT:C34160 TAO:0002231 presumptive structure