MCAT Biology Question 102: Answer and Explanation
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Question: 102
12. The tricuspid valve prevents backflow of blood from the:
- A. left ventricle into the left atrium.
- B. aorta into the left ventricle.
- C. pulmonary artery into the right ventricle.
- D. right ventricle into the right atrium.
Correct Answer: D
Explanation:
The atrioventricular valves are located between the atria and the ventricles on both sides of the heart. Their role is to prevent backflow of blood into the atria. The valve on the right side of the heart has three cusps and is called the tricuspid valve. It prevents backflow of blood from the right ventricle into the right atrium.