Blood vessels form a closed system of tubes that carries blood away from the heart, transport it to the various tissues of the body and then returns it to the heart. Blood vessels help in delivering oxygen, nutrients, and hormones to the tissues and carry away carbon dioxide and wastes
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Blood Circulation by heart occurs in 2 closed-circuits, i.e. double circulation, which operates in series. Output of one becomes the input
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Entire heart is made up of cardiac muscles. These cardiac muscle fibers are shorter in length and less circular than skeletal muscle fibers. They give Read More
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Human circulatory system consists of heart, blood and blood vessels. Heart has unique properties to circulate /pump