Across
- 2. the most important organ in the respiratory system
- 4. carries blood away from the so it can carry oxgen
- 6. tells your heart to pump blood
- 7. what body system pumps blood
Down
- 1. the boy tells the brain coordinate reflexes
- 2. clears the blood of toxin
- 3. carries blood to your heart
- 5. removes waste products from the blood