Across
- 5. central tubes that let oxygenated blood away from your heart.
- 9. central muscle that lets your blood pump in your body.
- 10. long tube that absorbs nutrients from food.
- 12. are Large sacs that let you breathe.
- 15. very small tube that lets your cells get oxygen.
- 16. tubes that lead from the bronchi to the alveoli.
Down
- 1. tube that absorbs water and expels bile.
- 2. a group of specialized tissue that serve the same purpose.
- 3. dome-shaped muscle that lets you inhale/exhale.
- 4. is a group of organs that make up a key system in your body.
- 6. large sac that breaks down solid food to be absorbed.
- 7. a small conglomeration of cells that have the same purpose.
- 8. the smallest unit of life, your body has trillions of them.
- 11. tubes that go to your heart and bring back Co2.
- 13. are small grape-shaped sacs that facilitate breathing.
- 14. tubes lead into the lungs and into smaller airways.
- 17. an individual that has many organ systems.