Across
- 2. this expands in the eye to let light in
- 3. this organ helps break down fats and makes insulin
- 4. these blood cells carry oxygen
- 9. this releases energy in the cell
- 10. this organ makes bile
- 13. these blood cells help fight infection
- 15. this system brings oxygen in the body and releases carbon dioxide
- 16. this is the outer layer of the skin
- 17. these connect muscles to bone
- 18. these contract to produce movement
- 19. this organ breaks down food
- 21. this system removes waste from the body
- 22. this system supports the body
- 23. the basic unit of structure for all living things
- 24. these take blood away from the heart
Down
- 1. this system circulates blood throughout the body
- 5. this system is made of glands and hormones
- 6. this system breaks down food for energy
- 7. this directs all activity in the cell
- 8. this hold urine until it leaves the body
- 11. these help create blood clots
- 12. you have 206 of these
- 14. this organ is paired and filters blood for waste
- 17. this organ takes oxygen from the mouth to the lungs
- 20. this system helps move the body