Question

What is pulmonary circulation ?

Answer 1

Pulmonary circulation:-

Definition:- It is defined as extending from the pulmonic valve to the left atrium and consists of the pulmonary outflow tract,

the right and left main pulmonary arteries and their branches , the intrapulmonary arteries,

capillaries, venules and large pulmonary veins.

Pathways- From the right atrium, the deoxygenated blood is pumped through the tricuspid value into the right ventricle.

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This blood pumped from right ventricles through the pulmonary valve and into the pulmonary trunk of the pulmonary artery and travels through the lungs.

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When $C{O}_2$ is released and $O_2$ is picked up during respiration, arteries are further divided into very fine capillaries which are extremely thin-walled.

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Then the pulmonary vein return oxygenated blood to the left atrium of the heart and from left atrium to left ventricle.

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From the ventricle oxygenated blood is circulated throughout the blood and body.