Transposition of the great aeries is a cardiac malformation that involves which of the following septa?: (A) Aoicopulmonary septum, (B) Atrial septum, (C) Atrioventricular septum, (D) Interventricular septum
Answer is A. Transposition of great vessels involves the Aoicopulmonary septum due to improper spiraling of AP septum fig;- transposition of great aeries Other AP septum disease:- 1.PTA(persistent truncus aeriosus) - due to absence of migration of NCC to truncus aeriosus. 2. TOF( tetrology of fallot):- due to anterior migration of AP septum. Defect in atrial septum lead to ASD. Defect in interventricular septum lead to VSD.