What percentage of right ventricular output is circulated through the fetal lungs?
a. 10%
b. 35%
c. 75%
d. 100%
ANS: A
As a result, 90% of the blood flow entering the pulmonary artery takes the path of least re-sistance by shunting through the ductus arteriosus and flows to the aorta. Only 10% flows into the lungs.
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