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What is the definition of valve?

Updated: 9/18/2023
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12y ago

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Heart valves: There are four heart valves. All are one-way valves. Blood entering the heart first passes through the tricuspid valve and then the pulmonary valve. After returning from the lungs, the blood passes through the mitral (bicuspid) valve and exits via the aortic valve.

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Q: What is the definition of valve?
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