ASD which is common -: (A) Patent foramen ovale, (B) Ostiumprimum, (C) Ostiumsecondum, (D) Sinusvenosus
Answer is C. Ans. is 'c' i,e., Ostium secondum o ASD can occur in any portion of atrial septum -SecundumPrimumSinus venosusAbsent atrial septum (leads to single atrium)o Ostium secondum defectDefect in region of fossa ovalisMost common form of ASD