Oxygenated blood is supplied to all body parts from:
Correct answer: D. Left ventricle
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Left ventricle
Explanation
Oxygenated blood is supplied to all body parts from the left ventricle. The left ventricle is the main pumping chamber of the heart. It receives oxygenated blood from the left atrium and then pumps it through the aorta to the rest of the body. The right ventricle is the other pumping chamber of the heart. It receives deoxygenated blood from the right atrium and then pumps it through the pulmonary artery to the lungs.When the left ventricle contracts, it pushes oxygenated blood into the aorta. The aortic valve closes to prevent blood from flowing back into the left ventricle. The oxygenated blood then travels through the arteries to all parts of the body. The arteries branch into smaller and smaller vessels, called arterioles, which then branch into capillaries. The capillaries are the smallest blood vessels and they allow oxygen and nutrients to be exchanged with waste products. The blood then travels back to the heart through the veins.
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The circulatory system covers the chambers, valves and conducting pathway of the human heart, along with the cardiac cycle and control of heartbeat. It compares arteries, veins and capillaries by structure and function, and explains how the lymphatic system returns tissue fluid, transports absorbed fats and supports immunity.
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