Differentiate between the following pairs on the basis of what is mentioned within the bracket.
Pulmonary artery and Pulmonary vein (Origin).
Difference between the pulmonary artery and pulmonary vein (origin):
Pulmonary artery | Pulmonary vein |
Two pulmonary artery arises from the right ventricle of the heart. | Four pulmonary veins, two from each lung, arises from the lungs and joins the left atrium. |