9.Draw a diagram of human heart and label its parts with functions.
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- Atria are thin, less muscular walls and smaller than ventricles. These are the blood-receiving chambers that are fed by the large veins.
- Ventricles are larger and more muscular chambers responsible for pumping and pushing blood out to the circulation. These are connected to larger arteries that deliver blood for circulation.
- Veins supply deoxygenated blood to the heart via inferior and superior vena cava, and it eventually drains into the right atrium.
- Capillaries are very small, tube-like vessels which form a network between the arteries to veins.
- Arteries are muscular-walled tubes mainly involved in supplying oxygenated blood away from the heart to all other parts of the body. Aorta is the largest of the arteries and it branches off into various smaller arteries throughout the body.
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