Systematic Circulation: It is the movement of the blood from the Heart through the body to provide Oxygen and Nutrients, and bringing back the deoxygenated blood back to Heart. 
Pulmonary Circulation: It carries the deoxygenated blood away from the heart, to the Lungs and returns oxygen rich blood back to the Heart.
Hope it is right and it is clear
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We  have a complete double circulation i.e. , two circulatory pathways , namely pulmonary and systematic circulation:-
The pulmonary circulation starts by the pumping of dexoygenated blood by the right ventricle which is carried to the lungs where it is oxygenated and returned to left atrium.
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The systematic circulation starts with the pumping of oxygenated blood by the left ventricle to the aorta which is carried to all body tissues and the deoxygenated blood from there is collected by the veins and returned to the right atrium . 
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