Which one of the following valves guards the opening between the right ventricle and the pulmonary artery?

  1. A. Bicuspid valve
  2. B. Semilunar valve
  3. C. Mitral valve
  4. D. Tricuspid valve

Correct Answer: B. Semilunar valve

Explanation

The pulmonary semilunar valve guards the opening between the right ventricle and the pulmonary artery, preventing backflow of blood.

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