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JulijaS [17]
3 years ago
7

Explain structure and working of heart?​

Biology
1 answer:
DochEvi [55]3 years ago
5 0

Answer:

The structure of the heart The heart is a two-sided pump made up of four chambers: the upper two chambers called atria and the lower two called the ventricles.

Explanation:

On the right side of the heart, the right atrium and right ventricle work to pump oxygen-poor blood returning from the body back to the lungs to be reoxygenated.

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