SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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heart
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artery
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vein
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capillaries
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Detailed explanation-1: -The heart pumps blood along with the network of arteries and veins forming the ‘Cardiovascular system’. Hence, the Heart is the organ that pumps blood throughout the body.
Detailed explanation-2: -Your heart is roughly the size of a fist and sits in the middle of your chest, slightly to the left. It’s the muscle at the centre of your circulation system, pumping blood around your body as your heart beats.
Detailed explanation-3: -The heart’s blood pumping cycle, which is called the cardiac cycle, begins when oxygen-free blood returns to the heart through the right atrium, after distributing oxygen and nutrients to other parts of the body. The blood then moves into the right ventricle, which facilitates a transfer of blood into the lungs.