Where does the blood leave the heart before coming back oxygenated?!

Question: Where does the blood leave the heart before coming back oxygenated!?
Answers:

Pulmonary Vein takes the blood away to the lungs and brings it back to the hear through the pulmonary arteryWww@Answer-Health@Com

biology majorWww@Answer-Health@Com

i think the veinsWww@Answer-Health@Com

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Where does the blood leave the heart before coming back oxygenated?!

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