Valves are present in between the auricles and ventricles of the heart. Give one reason.
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Valves between the atria and ventricles open and close passively according to changes in pressure in the chambers.The valve helps to preventing backward flow of blood.
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Answer:
Valves between the atria and ventricles open and close passively according to changes in pressure in the chambers. The valve helps to preventing backward flow of blood
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