Scripts-+Lisa+Marking+and+Manisha+Piryani+period+3

Power point is on Lisa: Hello, my name is Lisa Marking Manisha: And my name is Manisha Piryani. Lisa: Today on How the Body Works we will be talking about the circulatory system. Manisha start us off. First Slide Manisha: Well, the circulatory system consists of the heart, blood vessels, and blood. When I say blood, I mean like red blood cells, white blood cells, and platelets. Next slide: Manisha: The circulatory system carries needed substances to the cells and carries the waste products away. Lisa: In addition to that, the blood that contains cells try to fight off the disease. Manisha: The blood is the **__key__** to the circulatory system because is carries substances to one part of the body to another. Lisa: An example of this is oxygen from your lungs to other body cells are carried by blood. Lisa: Another wonderful thing that the blood does is, it transfers the glucose to your cells which would produce energy. Next Slide Manisha: The circulatory system uses the cells to help pick up waste products Lisa: An example of this is when your cells break down the glucose, they produce carbon dioxide as a waste product. Manisha: Then the carbon dioxide passes from your cells into the blood. Lisa: The circulatory later on carries on carbon dioxide to your lungs, where it is exhaled. Next Slide Lisa: Another function of the circulatory system is to send cells that charge disease-causing microorganisms. Manisha: -When this happens, you have a less chance to get sick. Say if you did get sick, these disease-fighting blood cells will kill the microorganisms and help you get well. Next Slide Manisha: Now we will tell you some facts about the circulatory system. Lisa: Humans-have a closed cardioascular system meaning, that the blood never leaves the network of arteries, veins, and capillaries. Manisha: The circulatory system includes: the pulmonary circulation,which is found through the lungs were blood is oxyenated through the body to provide oxygenated blood. Next Slide Lisa: Before we leave our show, we have a Fun Fact to tell you. Manisha, what is our Fun Fact today? Manisha: Our Fun Fact today is, an average adult contains 5 to 6 quarts of blood which consits of red blood cells, white blood cells, and platelets. Lisa: Well that is all for today. Good Day everyone! Join us next time on How the Body Works!