Question
A student asks why the heart has valves. Heart valves mainly:
Correct Answer: A
Ensure one-way blood flow through chambers
Heart valves prevent backflow during the cardiac cycle. They maintain directional flow from veins to atria, ventricles, and arteries.
Heart valves prevent backflow during the cardiac cycle. They maintain directional flow from veins to atria, ventricles, and arteries.
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