what prevents back flow of blood inside the heart during contraction
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As the heart pumps blood, a series of valves open and close tightly. These valves ensure that blood flows in only one direction, preventing backflow. The tricuspid valve is situated between the right atrium and right ventricle. The pulmonary valve is between the right ventricle and the pulmonary artery.
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1
Answer:
As the heart pumps blood, a series of valves open and close tightly. These valves is situated between the right atrium and right ventricle
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