In which point, pulmonary artery is different from pulmonary vein?(a) Its lumen is broad. (b) Its wall is thick. (c) It has valves. (d) It does not possess endothelium.

In which point, pulmonary artery is different from
pulmonary vein?
(a) Its lumen is broad.
(b) Its wall is thick.
(c) It has valves.
(d) It does not possess endothelium.
by

1 Answer

Answer :

(b) Its wall is thick.
by

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