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Blood pressure in the pulmonary artery is
A
more than that in the carotid.
B
more than that in the pulmonary vein.
C
less than that in the venae cavae.
D
same as that in the aorta.
Explanation
Arterial pressure exceeds venous pressure.
Detailed Solution
Blood pressure in the pulmonary artery is more than in the pulmonary vein; hence the wall of the pulmonary artery is thick and elastic, while the pulmonary vein walls are thin.