Question

The pulmonary trunk and systemic aorta are connected by ______
a) Chorde tendinae
b) Columnae carnac
c) Ligamentum arteriosum
d) Purkinje fibres

Answer 1

ITS LIGAMENTUM ARTERIOSUM.

Answer 2

Answer:

The pulmonary trunk and systemic aorta are connected by the (c) Ligamentum arteriosum.

The fibrous remains of a vessel, ductus arteriosus, which is the remnant of a prenatal vessel, is the Ligamentum arteriosum.

Prior to the birth of a child, the ductus arteriosus transfers blood right from the pulmonary arteries to the aorta. This is done to avoid the circulation of blood through the lungs, which are still non-functional at that stage.