Question

________ is a large vein that collects blood rich in carbon dioxide from all parts of the
body and empties the blood into the right atrium.​

Answer 1

vena cava

Explanation:

The superior vena cava and inferior vena cava are veins that return deoxygenated blood from circulation in the body and empty it into the right atrium. The pulmonary artery carries deoxygenated blood from the right ventricle into the lungs for oxygenation.