1. What does the heart do?
2. What are the names of the two types of tubes that carry the blood?
3. What are the main parts of the heart?
4. What are the main parts of the circulatory system?
5. What's the function of the blood?
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1. It's the muscle at the centre of your circulation system, pumping Blood around your body as your Heart beats.
2. Veins: the inferior and superior vena cava.
3. The heart is made up of four chambers: two upper chambers known as the left atrium and right atrium and two lower chambers called the left and right ventricles . It is also made up of four valves: the tricúspide, pulmonary, mitral and aortic valves.
4. The circulatory system consists of four major components:
Heart
Arteries
Veins
Blood
5. Transport, Protection and Regulation.
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