system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Patent formen ovale is due to failure of fusion of?
assistant
The correct answer is  D i.e. Septum primum with septum secundumUnequal division of conus Gordis resulting from anterior displacement of conotruncal septum gives rise to Fallot's tetralogyQ.- Ligamentum teres hepatis is remnant of umbilical vein (left)Q and ligamentum aeriosum in adult is remnant of ductus aeriosusQ.Patent foramen ovale is d/t failure of septum primum with septum secundumQ.