NEET PG Medical – 2012 – Question – 20
Fossa ovalis is a remnant of ?
a) Septum primum
b) Septum secundum
c) Ductus arteriosus
d) Ductus venosus
Show Answer
Correct Answer – A
Ans. is ‘A’ i.e., Septum primum [Ref BDC 5th/e Volume 1 p. 247;
IBS 7″Ve p. 265; Garg 2″/e p. 215]
Fossa ovalis is a remnant of foramen ovale. Floor of fossa ovalis is remnant of septum primum.