1. Blood

2. The purpose of blood is to:
• Move oxygen throughout the body
• Carry waste to the kidneys
• Fight infections and heal wounds
• Carry nutrients from the digestive system throughout the body Blood

3. What makes up blood? • 55%- Plasma: dissolved materials and 90% water
• 43%-Red blood cells: carry oxygen and carbon dioxide

4. What makes up blood? 2%-White blood cells: fight infection
• Platelets: large pieces of cells that help clot blood

5. What moves your blood around?
• Blood travels through blood vessels
• Arteries carry blood full of oxygen and nutrients away from the heart
• Veins carry blood full of carbon dioxide into the heart

6. What moves your blood around?
Capillaries are little blood vessels that carry blood between arteries and veins

7. Arteries Veins Capillaries

8. The Four Blood Types: A B AB O

9. The 4 blood types:
• AB is the universal recipient - it can receive all blood types
• O is the universal donor which - it can be given to anyone
• Each blood type has a chemical marker in it
• The body will attack any blood cells that it doesn’t recognize