Across
- 2. Bone and Cartilage
- 4. Passage that helps guide air into your windpipe and food into your esophagus
- 5. Large muscle that helps you breathe
- 8. Where oxygen enters the blood while carbon dioxide leaves
- 11. Bones that protect important organs in your chest
- 13. Organ that pumps blood throughout your entire body
- 15. Where two bones connect
Down
- 1. Blood vessels that take the blood back to the heart
- 3. Small blood vessel that allows oxygen to seep into your body's cells
- 6. Blood vessels that take the blood away from the heart and to the rest of the body
- 7. Bone that protects your brain
- 9. The main organs of breathing that take in oxygen
- 10. Carries air from your throat down to your lungs
- 12. Tissue inside your bones where blood cells are made
- 14. Pipes that carry blood through the body