The Beat Goes On

By Emma Cloninger, Chynna Connor, and Selena Clarke.

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The main organ is the heart. The heart pumps the and out. It also delivers blood to the whole entire body. That is a lot to do especially for an organ the size of your fist. Here's some fun information about the heart.

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  • Diseases

The disease that effect the cardiovascular are atherosclerosis and hypertension.
Atherosclerosis is a disease that effects the heart and makes it harder for the heart to pump blood throughout the body. It develops because of high amounts of cholesterol and fat like materials that narrow artery walls and make it harder for the heart to pump blood through the body.
The other cardiovascular disease that you can get is called hypertension. Hypertension is when someone's blood pressure is constantly higher than normal. Hypertension is usually caused when someone has unusually high levels of sodium, making their heart pump harder.

  • How To Take Care Of Your System

One way to take care of your heart and your cardiovascular system is to exercise regularly so that your heart beats well and at a normal rate. Another way to keep yourself heart healthy is to eat well so that your heart doesn't build up fat and cholesterol clogging your arteries. Also, try to maintain the amount of sodium you take in so your heart doesn't beat irregularly fast.

  • Types of Blood and Transfusions

The different types of blood are type a, type b, type ab, and type o. There are only certain types of blood that can be mixed in transfusions, or the blood starts trying to destroy the other type of blood, eventually killing the person if not treated soon. Type a blood can only be mixed with Type a and type o.Type b can only be mixed with type b and type o. Type ab can be mixed with type a, type ab, type b, and type o. Type o can only be mixed with more type o. Type o blood, that can be given to every other type of blood, is called a universal donor. Type ab, that can receive any type of blood, is called a universal receiver.


  • What Blood is made of

Blood is made up of four things. Plasma, red blood cells, white blood cells, and platelets. Plasma is the liquid part of blood. It carries nutrients like glucose, fats, vitamins, and minerals. It also carries chemical messages. One of the other important things that plasma does is carry away wastes from the cells. Red blood cells are produced in bone marrow and make up 45% of you blood. They take oxygen from the lungs and carry it to other parts of the body. Their thin and pinched shapes make it easy for them to twist and bend so that they can fit through teeny tiny capillaries. They are made mostly of hemoglobin, that holds oxygen to blood cells, so that they can keep oxygen in them when they take it to the cells. It also picks up carbon dioxide from cells once they can't use it anymore. White blood cells are also produced in bone marrow, like red blood cells. White blood cells have the function of fighting diseases in the body. Some of them find bacteria that cause diseases, and then tell the body that they are there and where they are. Then, other white blood cells make chemicals that fight off the bacteria. Then, other one surround the bacteria and kill the diseases. The last part of the blood is the platelets. They are pieces of cells that help for blood to clot. When a vessel is cut, platelets collect where it was cut and help the blood to clot so taht a person doesn't bleed anymore.

Extra Information and Review Game

The Heart
The Heart

Part of the Heart


Parts of the Circulatory System.


The blood in your body gets pumped through the right atrium to the right ventricle, and then to the lungs to pick up oxygen.
Then it goes from the lungs to the left atrium and ventricle, the pumped through the body.


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