ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The heart is a muscular
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pump.
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vessel.
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vessel.
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chamber.
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Explanation:
Detailed explanation-1: -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-2: -The heart is a large, muscular organ that pumps blood filled with oxygen and nutrients through the blood vessels to the body tissues.
Detailed explanation-3: -Looking at the outside of the heart, you can see that the heart is made of muscle. The strong muscular walls contract (squeeze), pumping blood to the rest of the body. On the surface of the heart, there are coronary arteries, which supply oxygen-rich blood to the heart muscle itself.
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