Question

The heart has four one-way valves, which open and close with each heartbeat. true or false
Answered by GPT-4o mini
True. The heart has four one-way valves: the tricuspid valve, pulmonary valve, mitral valve, and aortic valve. These valves open and close to ensure the unidirectional flow of blood through the heart chambers and into the blood vessels with each heartbeat.
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