Period+1+Circulatory+System+Script

__Maabe: The Circulatory System__

 * ** Nelson: By Nelson **

__Maabe: AND Maabe !!!__ __ Maabe: I've also heard that the heart pumps about 50 million gallons in you're life time __ __Maabe: The main components of the circulatory system are the heart, blood, and blood vessels.__ __Maabe: Without the circulatory system we wouldn't have blood flowing though our veins and going to other parts of our body.__ __Maabe: Blood vessels main function are to transfer blood around to body.__ __** Nelson: Here I am down in the heart... which is one of the muscles in the circulatory system **__**. ** __Maabe: The aorta is the largest artery in the body. The function is to distribute oxygen rich blood to all arteries. Most major arteries branch off the aorta, With the exception of the main pulmonary artery__ __Maabe: The left atrium receives oxygenated blood from the lungs then the blood is passed to the mitral valve into the left ventricle.__ __** Nelson: One part of the heart is the mitral valve. It is a **__ __** structure that controls blood flow between the heart's left atrium and left ventricle **__ __Maabe : Another part of the heart is the left ventricle It receives oxygenated blood from the left atrium and pumps it into the aorta.__ __Maabe: Tune in tomorrow morning at 7:00 with the story of...__
 * __Maabe: Did you know that the heart is a muscle?.__ **
 * Nelson: I learned something today**
 * Nelson: Yes it does, and he main goal of the circulatory system is to move nutrients, gases, and wastes from cells to other cells. It also maintains the blood flow throughout the body. The circulatory system also fights diseases and maintain a homeostasis **
 * Nelson**: **But Simon why do we need** **the Circulatory System?**
 * Nelson: Blood is a body fluid that delivers necessary nutrients and oxygen to the bodies cells and transports waste away from the cells**.
 * Nelson: One part of the heart that I know is the Pulmonary Artery Which function is it carries De-Oxygenated blood from the Right ventricle to the lungs.**
 * Nelson: The aortic valve is one of the valves of the heart. Valves control the flow of blood through the heart. It lies between the left ventricle and the aorta. The aortic valve functions are kind of like the cell membrane in osmosis, when there's lots of pressure in the left ventricle the valve opens allowing blood to lower the pressure.**
 * Nelson: suspected pirates in lake michigan**
 * THE END**