What carries deoxygenated blood from the body back to the heart?

Veins are responsible for carrying deoxygenated blood from the body back to the heart. This is an essential function within the circulatory system, as veins collect blood that has delivered oxygen and nutrients to the body’s tissues and is now returning to the heart to receive oxygen once again.

Arteries, on the other hand, carry oxygen-rich blood away from the heart to the body, making them unsuitable for this purpose. Capillaries serve as the tiny blood vessels that connect arteries and veins and allow for the exchange of oxygen, carbon dioxide, and other substances between blood and tissues, but they do not have the capability to transport blood over longer distances like veins do. Ventricles refer to the chambers within the heart that pump blood out of the heart; they do not transport blood back to the heart from the body.

Overall, veins play a crucial role in returning deoxygenated blood to the heart, ensuring proper circulation and the ongoing process of oxygenation in the lungs.