In: Biology
In words, trace blood flow through the systemic and pulmonary circuits.
Answer=
The blood flow through the systemic and pulmonary circulation:
Pulmonary circulation=
Right atrium 
 right ventricle 
 pulmonary trunk 
 pulmonary arteries 
 lungs 
 pulmonary veins 
 Heart.
in pulmonary circulation,blood flows from right atrium to right ventricle then enters into the pulmonary trunk .then enters into lungs through pulmonary arteries.then by means of pulmonary veins blood enters into the heart.
systemic circulation:=
Left atrium
left ventricle 
 aorta 
arteries 
 arterioles 
capillaries 
venules 
 veins 
vena cava 
 heart (right atrium)
in systemic circulation,the blood from left atrium,enters into left ventricle then to the aorta,then flows through arteries into arterioles then into capillaries then venules,then into veins ,then enters vena cava then into heart.