Distinguish between pulmonary artery and pulmonary vein?
1 Answer
May 20, 2017
Pulmonary arteries are one pair in number (branching out from pulmonary trunk) while pulmonary veins are two pair in number, one pair from each lung.
Explanation:
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Pulmonary artery takes away blood from heart to lung of respective side. Pulmonary veins drain blood from lung (one pair from each side) to heart.
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Blood in pulmonary artery is deoxygenated, blood in pulmonary vein is oxygenated.
- Pulmonary artery carries blood from right ventricle of heart. Pulmonary vein carries blood towards left auricle of heart.
![https://useruploads.socratic.org/Pc2tqwBWSvOCRbcdusdK_pulmonary-circuit.jpeg)
- Blood pressure within pulmonary artery is higher than that in pulmonary vein.
- Wall of pulmonary artery is thick and elastic, wall of pulmonary vein is comparatively thinner.