Question

explain double circulation in human​

Answer 1

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Explain double circulation in humans?

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The heart receives deoxygenated blood from different parts of the body, and it pumps this blood to the lungs. The oxygenated blood from the lungs returns to the heart, which is pumped again into different parts of the body by the heart. Thus, the blood passes twice through the heart making one complete round through the body. This is called double circulation.

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Answer 2

Answer:

The human circulatory system has three key components: blood vessels, blood and the heart. 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. By the time this blood returns to the heart, it has returned to a deoxygenated state.

Blood enters the heart

Deoxygenated blood from the body enters into the right atrium of the heart.

Blood pumped to lungs

This deoxygenated blood is pumped out of the heart and towards the lungs by the right ventricle.

Lungs oxygenate the blood

At the lungs, the deoxygenated blood exchanges carbon dioxide for oxygen. This is how it becomes oxygenated (contains oxygen).

Blood returns to the heart

Oxygenated blood returns to the left atrium of the heart.

Blood pumped to the body

This oxygenated blood is pumped out of the heart and to the body by the left ventricle.

Blood returns to the heart

The oxygenated blood gives its oxygen to body cells in exchange for carbon dioxide. The blood becomes deoxygenated and returns to the heart.