Across
- 5. System for moving blood around the body
- 9. Carry blood to the heart
- 11. The liver helps to removes these from the body
- 12. The smallest blood vessels in the body
- 13. The heart has _________ chambers
- 14. Breakdown that involves grinding and mixing
- 17. Carries oxygen and nutrients to entire body
- 18. Organs working together are grouped in ______
- 19. The intestine that transfers nutrients into blood
- 21. System for breaking down food into nutrients
Down
- 1. cells performing similar functions or jobs
- 2. Your heart has two atriums and two ___
- 3. Carry blood away from the heart
- 4. Keep blood from flowing the wrong direction
- 6. System for bringing oxygen into the body
- 7. The smallest unit of organization in the body
- 8. The digestive system breaks food into this
- 10. groups of tissues working together make these
- 15. Tube carrying food from mouth to the stomach
- 16. Muscle that works every minute of your life
- 20. Breakdown that involves acid