Which are two organs that have both oxygenated and deoxgenated blood flowing into and out of them?

The heart and the lungs are two organs that handle both oxygenated and deoxygenated blood. The heart has two sides: the right side receives deoxygenated blood from the body and pumps it to the lungs, while the left side receives oxygenated blood from the lungs and pumps it to the rest of the body. The lungs, on the other hand, receive deoxygenated blood from the heart for gas exchange and then return oxygenated blood back to the heart.