Question

explain working of human heart​

Answer 1

Answer:

Plz refer to the attachment.

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Answer 2

Answer:

deoxygenated blood enters right atrium through vena cava and passes to right ventricle. from there, it goes to lungs to get oxygenated through pulmonary artery. from there, it returns and enters left atrium through pulmonary vein and passes to left ventricle,. from there it goes to other body parts except lungs through aorta.