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Question
Differentiate between the following pair of terms:
Pulmonary artery and pulmonary vein.
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Solution
| Sr. No. | Pulmonary artery | Pulmonary vein |
| 1. | The pulmonary artery carries Carbon-dioxide rich blood to the lungs. | The pulmonary vein carries oxygen-rich blood to the lungs. |
| 2. | The pulmonary artery arises from the right ventricle of the heart | The pulmonary vein drains blood in the left atrium of the heart. |
| 3. | The pulmonary artery divides into one pair of pulmonary arteries. | The pulmonary vein divides into two pairs of pulmonary veins. |
| 4. | It carries deoxygenated blood, unlike the rest of the arteries. | It carries oxygenated blood, unlike the rest of the veins. |
| 5. | Wall is thick and elastic. | Wall is thin. |
| 6. | Semilunar valves are present. | Valves are absent. |
| 7. | Blood pressure is higher. | Blood pressure is lower. |
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