| A | B |
|---|
| Red blood cells | Carry oxygen, waste, and nutrients around the blood |
| White blood cells | Attach themselves to foreign objects (germs) to fight infections |
| Plasma | Yellowish, clear liquid that other parts of blood travel through |
| Platelets | Form clots in the blood stream to stop bleeding |
| Arteries | Vessels that carry blood away from the heart |
| Veins | Vessels that carry blood to the heart |
| Capillaries | The smallest blood vessels, where the exchange of gas and nutrients takes place |
| Lungs | Organ where oxygen and carbon dioxide are exchanged |
