Across
- 2. the element that we exhale
- 4. muscle that expands and contract so you can breathe
- 5. third most important organ in your body; it filters your blood
- 6. blood vessels that carry blood away from the heart
- 11. main organ in the respiratory system
- 13. main organ in the circulatory system
- 14. larger bone in your lower leg
- 15. bones that protect your lungs
Down
- 1. section of the intestine that absorbs water and vitamin K
- 3. bones in your back; what carries signals from your brain to your body
- 7. bone that protects your brain
- 8. organ that controls blood sugar
- 9. what your food goes down to get to your stomach
- 10. largest bone in human body
- 12. smaller bone in the lower part of your leg