Circulatory

﻿ circulatory system by: Zachary k, Evan D, Nicole O, Megan Bu

__Function-__ To bring oxygen and food to the body cells. To take away carbon dioxide and other wastes.

//**__parts-__ Heart, Blood, Blood vessels (arteries, capallaries, veins)** ﻿Heart pumps blood around the body threw arteries, veins and capallaries.The heart has four sections right atrium, left atrium, right ventricle, left ventricle. Arteries lead away from the heart and veins lead to the heart. Oxygen and Carbon Dioxide are changed threw capalaries.//

__ red blood cells- __ carry oxygen and carbon dioxide to and from the lungs. ﻿* live only about 100-120 days.

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white blood cells﻿-

White blood cells (WBCs) are a part of the immune system and help our bodies fight infection. They circulate in the blood so that they can be transported to an area where an infection has developed. In a normal adult body there are 4,000 to 10,000 (average 7,000) WBCs per micro liter of blood. When the number of WBCs in your blood increases, this is a sign of an infection somewhere in your body. They are also called the "cops" of the body.There are about 6,000 white blood cells per cubic millimeter.

The **__heart__** is a organ that pumps blood threwout the body. It is about the size of your fist. There is 4 chambers or sections the right and left atrium and the right and left ventricle. The heart is made of cardiac muscle and is invoulontary. The valves are doorways that blood goes threw. The septum is a wall to seperate the two sides of the heart.



diseases/problems with circulatory system-
 * Heart attack: Sudden sharp pain that is highly dangerous
 * Blood clotting disorders: Damage to veins from injury or infection
 * Lymphedema: An abnormal build up of fluid that causes swelling most often in legs and arms

There are 4 parts of the //**__blood__**//. The red blood cells, white blood cells, platelets and plasma. Red blood cells carry oxygen and carbon dyoxide and bring nutriants to your body cells. White blood cells fight germs. Platelets form a net to clot blood and stop the bleeding. Plasma is a liquid part of the blood that carries food and the blood cells.

Vocabulary-
 * **Atria (plural for atrium): Top two chanbers (recieve blood) **
 * **Ventricles : Bottom two chamber (pumps blood out) **
 * **<span style="background-color: #151313; color: #800080; font-family: 'Times New Roman',Times,serif; font-size: 150%;">Valves : "Doorways" that blood goes through (valves seperate the chambers) **
 * **<span style="color: #800080; font-family: 'Times New Roman',Times,serif; font-size: 150%;"><span style="background-color: #371f1f; color: #1a8000; font-family: 'Times New Roman',Times,serif; font-size: 150%;">Septum : Wall of muscle between left and right sides **

Fun facts-
 * In your heart the left side is the right side and the right side is your left!
 * The Circulartory system is also known as the cardiovascular system!
 * Your heart is as big as your fist!
 * __//**One drop**//__ of blood contains a **//__half drop__//** of plasma, __//**5 million**//__ red blood cells, __//**10 thousand**//__ white blood cells, and __**//250 thousand//**__ of platelets!
 * Your heart beats about __//**3 billion**//__ times during your life time!

6 Ways to a healthy circulatory system-
 * 1) Do not smoke! Over 50% of people who sufer from Heart Attacks are smokers!
 * 2) Control your weight! Extra weight can put you at a higher risk of heart diesese!
 * 3) Learn about your family history with deiseses so if it is in your family you have a head start on saving yourself!
 * 4) Eat whole grain cereal 5 or more times a week!
 * 5) Include at least some soyprotein into your daily diet! Many studies show it is able to lower "bad" chloresteral!
 * 6) Eat healthy foods and excircise __//DAILY!//__

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