What are the functions of systematic coronary and pulmonary circulation?

Coronary circulation is the circulation in veins and arteries that lead to your heart and give it nutrients.

Pulmonary circulation is when the heart pumps oxygen poor blood into the lungs to be filled with nutrients from oxygen.

Systematic circulation is the heart pumping oxygen rich blood from the lungs and to the rest of the body, then back to the heart to repeat the process.