Question

question 6 of 10
what does the pulmonary vein do?
a. carries carbon - dioxide - rich blood from the heart to the lung
b. carries carbon - dioxide - rich blood from the lung to the heart
c. carries oxygen - rich blood from the lung to the heart
d. carries oxygen - rich blood from the heart to the lung

Explanation:

The pulmonary veins carry oxygen - rich blood from the lungs to the heart after the process of gas exchange in the lungs. Oxygen - poor (carbon - dioxide rich) blood is carried to the lungs by the pulmonary arteries.

Answer:

C. Carries oxygen - rich blood from the lung to the heart