What is the special feature present in human heart which does not allow mixing of blood when oxygen rich and carbon dioxide rich blood reach the heart?
Identify the correct match
I: Coronary artery – Oxygen-rich blood
II: Pulmonary vein – Carbon dioxide-rich blood
III: Pulmonary artery – Oxygen-rich blood
IV: Hepatic vein – Carbon dioxide-rich blood
The blood vessel that normally carries oxygen rich blood is known as ___.
