blood circulation

Blood circulation is the process by which blood moves throughout the body, delivering oxygen and nutrients to tissues and removing waste products. The heart pumps blood through a network of arteries, veins, and capillaries. Oxygen-rich blood travels from the heart to the body via arteries, while carbon dioxide-rich blood returns to the heart through veins. The heart’s rhythmic beats maintain this flow. The lungs play a crucial role by exchanging carbon dioxide for oxygen, ensuring the blood remains oxygenated. This continuous cycle is vital for maintaining health and supporting the body's functions.