MDCAT Biology MCQ #2135

In the fetal circulation, what is the primary function of the ductus arteriosus?

MDCAT Biology MCQ #2135

  1. Question 1

    Q1. In the fetal circulation, what is the primary function of the ductus arteriosus?

    • A) To bypass the lungs
    • B) To increase pulmonary blood flow
    • C) To supply oxygenated blood to the brain
    • D) To regulate systemic blood pressure

    Answer: To bypass the lungs

    Explanation: The ductus arteriosus bypasses the lungs by shunting blood from the pulmonary artery to the aorta.