1. Circulatory system
by Greg and Sam

2. The circle
The heart has veins and arteries . They call it the circulatory system because it goes in a circle. The arteries go to the body part and spread to capillaries They give the part oxygen and the veins get the blood without oxygen and go back to the heart to get oxygen. And does the pattern again.

3. The heart
The heart is the most important part of the circulatory system. It pumps blood to body parts for oxygen.
Model real

4. Red and blue
Red is the color of blood when it has oxygen in it. Blue is when it empty's the oxygen and goes back to the heart to get oxygen again. They never touch or they will mix.

5. Blood vessels
Arteries are as thick as your thumb. As they get closer to the body part they… split to capillaries. They are ALOT smaller. They also triple. Ones the part gets the oxygen out of the blood veins take the blood back to the heart.

6. What is in the blood?
The blood has red blood cells to make it red. The red blood cells hold oxygen to give it to the body.
The white blood cells kill all germs in the body.
The platelets cover all the cuts you have.
And finally plasma makes up the blood.

7. Problems Stroke, heart attack, blood clot, aneurism leukemia.
If you have a stroke you don’t get blood to your brain.
for a heart attack you have to much fat under your heart so the hearts fat blocks the veins and arteries. So the heart pumps faster.
blood cot is when your blood gets to much platelets and dry's out.
Aneurism is when your blood vessels get bigger and explode.
leukemia is blood cancer caused by mosquitoes.

8. How to recover
For a stroke you need to have therapy to learn how to walk talk and more. Keep calm and lazy.
If you have a heart attack go strait to the doctor and get CPR and don’t be active. It might again.
If you have blood clot you have to get your blood vessels replaced.
If you have aneurism you have a surgery on your blood vessels.
For leukemia you get your blood replaced.

9. Thank you !!!!!!!!!!!!!!!!!!!!!!!!!!!