The circulatory system micro-lesson
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The circulatory system is very important. It is made up of the heart, blood, and the blood vessels. The purpose of this system is to deliver oxygen and nutrient-rich blood to all the cells in the body and carry away waste such as carbon dioxide that your body produces. The heart is the size of a fist and is located in the left-hand side of the chest. Blood from the body is carried into the right atrium. This blood is full of carbon dioxide. The blood then moves into the right ventricle, and this is squeezed to the lungs. In the lungs, the blood picks up oxygen and releases carbon dioxide. The oxygen-rich blood then enters the left atrium, then the left ventricle where it is pumped to the rest of the body.
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The blood picks up carbon dioxide and releases oxygen in the lungs. True or false?1) FALSE2) TRUE
The heart is on the right hand side of the chest. True or false?1) FALSE2) TRUE
The right ventricle squeezes blood to the lungs. True or false?1) TRUE2) FALSE
What three things make up the circulatory system?1) Heart, blood and blood vessels2) Heart, blood and lungs3) Blood vessels, lungs and blood4) Heart, lungs and liver
Which waste product is carried away in the blood?1) Carbon dioxide2) Water3) Nutrients4) Glucose
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