MDCAT Biology MCQ #2099

Which structure in the heart prevents backflow of blood from the ventricles to the atria?

MDCAT Biology MCQ #2099

  1. Question 1

    Q1. Which structure in the heart prevents backflow of blood from the ventricles to the atria?

    • A) Semilunar valves
    • B) Atrioventricular valves
    • C) Chordae tendineae
    • D) Papillary muscles

    Answer: Atrioventricular valves

    Explanation: Atrioventricular valves prevent backflow from ventricles to atria. Semilunar valves prevent backflow from arteries to ventricles.