ten thousand eassy on human heart ? in English
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The heart is important because it pumps blood around your body, delivering oxygen and nutrients to your cells and removing waste products.The human heart is an organ that pumps blood throughout the body via the vessels of the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes. ... "If [the heart] is not able to supply blood to the organs and tissues, they'll die."
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The heart is a muscular organ in humans and other animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, as well as assists in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest.
In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria; and lower left and right ventricles. Commonly the right atrium and ventricle are referred to together as the right heart and their left counterparts as the left heart. The heart receives blood low in oxygen from the systematic circulation, which enters the right atrium from the superior and inferior vena cava and passes to the right atrium. The heart beats at a resting rate of close to 72 beats per minute. Exercise temporarily increases the rate, lowers resting heart rate in the long term , and is good for health.
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