Two organs in the circulatory system are the heart and the blood vessels.
1. Heart: The heart is a muscular organ that pumps oxygenated blood to the body's tissues and organs and helps in the circulation of deoxygenated blood back to the lungs for oxygenation. It acts as a pump to maintain a constant flow of blood throughout the body. The heart contracts and relaxes in a rhythmic manner, allowing blood to be pushed forward into the arteries and pumped into the circulatory system.
2. Blood Vessels: Blood vessels are a network of tubes that transport blood to and from all the parts of the body. There are three types of blood vessels: arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart to the body tissues, while veins carry deoxygenated blood back to the heart. Capillaries are tiny, thin-walled blood vessels that connect arteries and veins, enabling the exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues. The blood vessels help in the transportation of blood throughout the body, ensuring the delivery of oxygen and nutrients to the cells and the removal of waste products.
Name two organs in the circulatory system and how they help the system do its job.
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