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Two atria and two ventricles make up the heart's four chambers. Blood with low oxygen content leaves the body through the right atrium and is pumped to the right ventricle. Oxygen-deficient blood is pumped to the lungs by the right ventricle.

What role does the atrium play?

Two ventricles and two atria make up the human heart's four chambers. The chambers responsible for pumping and receiving blood are known as the ventricles and the atrium, respectively.

One of the four chambers of the heart is the right atrium. Blood with low oxygen content is drawn into the right atrium from the body, where it is then pumped into the right ventricle.

To know more about atrium visit:

https://brainly.com/question/15409146

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