What are truncus arteriosus?

Some articles on truncus arteriosus, truncus, arteriosus:

Aortic Septum
... In the developing heart, the truncus arteriosus and bulbus cordis are divided by the aortic septum ... fuse to form a septum, which takes a spiral course toward the proximal end of the truncus arteriosus ... It divides the distal part of the truncus into two vessels, the aorta and pulmonary artery, which lie side by side above, but near the heart the pulmonary artery is in front of the aorta ...
Truncus Arteriosus (embryology) - Developmental Abnormalies
... Failure of the truncus arteriosus to close results in the condition known as Persistent Truncus Arteriosus, or simply "Truncus arteriosus," one of many cyanotic heart defects or congenital ... Other pathologies of the truncus arteriosus include transposition of the great vessels (arteries in this case), and tetralogy of Fallot ...
Heart Development - Septation and Valve Formation
... The truncus arteriosus and the adjacent bulbus cordis partition by means of cells from the neural crest ... Defects in this process produces persistent truncus arteriosus, unequal division of the truncus arteriosus, transposition of the great arteries, aortic ...
Truncus Arteriosus (embryology)
... The truncus arteriosus and bulbus cordis are divided by the aorticopulmonary septum ... The truncus arteriosus gives rise to the ascending aorta and the pulmonary trunk ... (outflow tract) of the left and right ventricles (aortic vestibule conus arteriosus respectively) ...