What happens to the blood during systemic circulation?

During systemic circulation, oxygen-rich blood is pumped from the left ventricle of the heart into the aorta, distributing it throughout the body. As the blood travels through the arteries and arterioles, it delivers oxygen and nutrients to tissues and organs while collecting carbon dioxide and metabolic waste. The deoxygenated blood then returns to the heart through the veins, entering the right atrium, where it will be sent to the lungs for reoxygenation. This process ensures that the body's cells receive the necessary substances for metabolism and function.