Final answer:
The right ventricle of the fetus pumps a small percentage of blood volume to the rest of the body, with the majority being directed away from the non-functioning lungs.
Step-by-step explanation:
The right ventricle of the fetus pumps a small percentage of blood volume to the rest of the body.
The majority of the blood that is pumped by the right ventricle is directed toward the non-functioning lungs, where it is not needed.
Instead, a shunt called the ductus arteriosus diverts this blood from the pulmonary trunk to the aorta, ensuring that only a small volume of oxygenated blood passes through the immature pulmonary circuit.