Across
- 4. Tiny air sacs in the lungs.
- 5. Filters the blood coming from the digestive tract.
- 9. Secretes digestive enzymes.
- 10. They filter the blood.
- 12. They absorb nutrients from what we eat and drink.
- 14. An important energy source in living organisms.
- 15. A band or bundle of tissue that has the ability to contract to produce movement.
- 19. Delivers nutrients like oxygen to your cells.
Down
- 1. Pumps blood to your body.
- 2. Connects the throat to the stomach.
- 3. Involved in the production and removal of blood cells
- 6. Connected together with cushions of cartilage.
- 7. The center of the nervous system.
- 8. Protects organs in the chest.
- 11. it creates gastric acid to break down materials.
- 12. Hormone produced by the pancreas.
- 13. Allows you to take in oxygen and get rid of carbon dioxide.
- 16. The largest organ.
- 17. They react to light and pressure.
- 18. The beginning of the digestive system.