Across
- 4. Strongest muscle in the body
- 6. non-oxygenated blood cells
- 8. Parts of the heart that divide into sections
- 9. Carry blood away from the heart
Down
- 1. Carries oxygen
- 2. Fights off infections
- 3. Prevents blood from backing up
- 5. Biggest blood vessel in the body
- 6. Yellow things inside the blood
- 7. Carry blood towards the heart