Question
Kindly Study the following questions carefully and choose the right answer: Which of the following is/are true about the human heart?
Kindly Study the following questions carefully and choose the right answer: Which of the following is/are true about the human heart?
I. The heart has valves to ensure blood does not flow backwards when the atria or ventricles contract.
II. Oxygen-rich blood from the lungs enters the heart via the right atrium.
III. Ventricles have thicker muscular walls than the atria.
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