<prompt> Most common type of VSD-MembranousMuscularMultipleNone  <response>: Ans. is a i.e., Membranous Ventricular septa! defect VSD VSD is the most common congenital cardiac lesion. o VSD is a communication between two ventricles. o VSD may be lecated at : - i vMembranous pa of ventricular septum most common -- 90 ii Muscular septum iii May be multiple 