what are the structures of the pulmonary circuit, and in what order does blood run through them?
a)right atrium and ventricle of the heart, pulmonary veins, lungs, pulmonary artery
b) left atrium and ventricle of heart, pulmonary artery, lungs, pulmonary veins
c) right atrium and ventricle of the heart, pulmonary artery, lungs, pulmonary veins
d) left atrium and ventricle of the heart, pulmonary veins, lungs, pulmonary artery