MCQs

The partial fusion of two ventral aortae is called……………

• Aortic sac

• Pulmonary sac

• Aortic arch

• Left horn

Where is Ostium primum formed

• Between RV & LV

• Between RA & LA

• Between RA & Ventricle

• Within Coronary sinus

Which of the following arch arteries doesn’t disappear

• First arch artery

• Second arch artery

• Fifth arch artery

• Sixth arch artery

Pulmonary trunk develops from……………..arch artery

• Third

• Fourth

• Fifth

• Sixth

The descending aorta is derived from ……………………

• Right Dorsal aorta and fused dorsal aorta

• Left dorsal aorta and fused dorsal aorta

• Right horn

• Left horn

Connection between aorta and pulmonary artery is known as……………

• Patent Ductus arteriosus

• Av canal defect

• Atrial septal defect

• Ventricular septal defect

Following are the branches of aortic arch except

• Brachiocephalic artery

• Left common carotid artery

• Left subclavian artery

• Radial artery

The common carotid artery is derived from the………..

• Proximal part of 3^rd arch artery

• Distal part of 3^rd arch artery

• Proximal part of 4^th arch artery

• Distal part of 4^th arch artery

The communication between common atrial chamber and ventricle is called as

• Atrioventricular canal

• Septum secundum

• Septum primum

• Ostium primum

Fossa ovalis represents ….

• Septum primum

• Septum secundum

• Ostium primum

• Ostium secundum