Question

expln double circulation in heart​

Answer 1

Explanation:

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Double Circulatory System. ... It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart. The left pump sends the newly oxygenated blood around the body.

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Answer 2

Explanation:

circulation of heart are define by two form i.e

Artery : arterties carry oxygen rich blood from heart to all parts of the body.since the blood flow is rapid and at a high pressure ,the arteries have thick elastic walls.

Vein: vein are the vessels which carry carbon dioxide rich blood From all parts of the body back to the heart .The vein have thin walls.there are valves present in being which allow blood to flow only towards the heart.

heart are define by four chamber.