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प्रश्न
Write a short note on the human heart.
उत्तर
The heart is a pump that circulates blood to all parts of the body. It is about the size of a human fist and located to the left in chest cavity. It has four chambers – two upper chambers called auricles or atria and two lower chambers called ventricles. The auricles receive blood from different body parts and ventricles pump the blood out of the heart. The valves between auricle and ventricle on each side allow blood to flow in one direction only. Heart acts as a double pump. The right side of the heart carries deoxygenated blood to the lungs to be oxygenated. The left side of the heart pump oxygenated blood to the body.
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संबंधित प्रश्न
Describe the function of the heart.
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within bracket:
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What is diastole?
Give any three differences between an artery and a vein
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Define the Circulatory system.
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Analogy
Lungs: Respiratory system:: _______: Circulatory system.
