valves are present between the auricles and ventricles of the heart justify their position
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they are present in such a way that the blood cannot flow back.
the mouth of valve is like | | ← artery
/ \ ← valve
now,. the blood can easily flow in but it cannot reverse its direction
the mouth of valve is like | | ← artery
/ \ ← valve
now,. the blood can easily flow in but it cannot reverse its direction
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1
Answer:
The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
Explanation:
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