How does the circulatory system function?
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The circulatory system is responsible for transporting blood, nutrients, oxygen, and other essential substances throughout the body. It includes the heart, blood vessels, and blood. The heart pumps oxygenated blood from the lungs to the rest of the body and returns deoxygenated blood to the lungs to be replenished with oxygen.
The circulatory system is responsible for transporting blood, oxygen, and nutrients throughout the body. The heart pumps oxygen-poor blood to the lungs to pick up oxygen and release carbon dioxide. Oxygen-rich blood returns to the heart and is pumped out to the rest of the body through arteries. Capillaries exchange nutrients and waste products between the blood and body tissues. Veins return blood to the heart, and the process starts again. The circulatory system also includes the lymphatic system, which helps to remove waste and fight infections.
The circulatory system, composed of the heart, blood vessels, and blood, functions to transport oxygen, nutrients, hormones, and other substances throughout the body. The heart pumps oxygenated blood from the lungs to the body's tissues via arteries. After delivering oxygen and nutrients, the deoxygenated blood returns to the heart through veins to be pumped to the lungs for oxygenation again.