The human body relies on an intricate network of systems to function efficiently. Among these, the circulatory system plays a crucial role, with the heart acting as a pump to circulate blood through various blood vessels, including arteries, veins, and capillaries.
Blood which contains red blood cells flows through blood vessels this includes capillaries, veins, arteries, and smaller blood vessels. The heart acts as a pump which works to pump the blood around the body through blood vessels. Arteries are blood vessels which have blood that flows away from the heart. Veins are blood vessels which have blood that flows into the heart.