1. Circulatory System

2. Has three main parts: The blood
The muscle pumping the blood – The Heart
The tubes carrying the blood –
Arteries, Veins, Capillaries

3. 1.) The Blood

4. Responsible for clotting
Part Job
Red Blood Cells
Carries oxygen
White Blood Cells
Fights infection
Platelets
Responsible for clotting
Plasma
Carries food

5. 2. ) The Heart
But THIS one
Not this one

6. Time to label…

7. Pumping Heart
Pumping Heart - More Detailed

8. If the blood vessels that supply the heart with food and oxygen get clogged…

9. Heart attack

10. 3. ) The Tubes – a. Arteries
Take oxygenated blood away from the heart

11. 3.) The Tubes – b. Veins
Returns deoxygenated blood to the heart.

12. If those little valves don’t work properly…
varicose veins

13. Artery Vein

14. The Tubes – c. Capillaries
The capillary wall is only one CELL thick. If it were any thicker the food and oxygen that the blood carries couldn’t get through to the cells of your body.

15. This is what happens when those capillaries break under the skin.
A bruise.

16. This is what happens when those capillaries break under the skin on your neck.
A hickey. Trashy things…

17. Basic Circulation 1
Basic Circulation 2