Early Embryonic Development & Implantation — Topic Test
8 questions · exam mode (answers revealed at the end). 18 min suggested.
During development, failure of the bulbus cordis and truncus arteriosus to spiral correctly produces a heart in which the aorta arises from the right ventricle and the pulmonary trunk from the left ventricle. Which embryonic structure has failed to develop properly?
ASeptum secundum
BSeptum primum
CAorticopulmonary (spiral) septum
DEndocardial cushions