Across
- 2. a hollow, muscular organ that pumps blood throughout the body
- 4. small vessels where oxygen and nutrients leave the blood to go into the cells and carbon dioxide and other waste products enter the blood from the cells
- 5. cells that carry oxygen throughout the body
- 7. carry waste products from all the parts of the body back to the heart
- 10. The lower chambers of the heart
- 12. carry blood that has oxygen and nutrients from the heart to all parts of the body
- 13. This separate the atria from the ventricles. They are flaps of tissue that prevent blood from flowing backwards.
- 14. The water portion of the blood
Down
- 1. cells that carry disease fighters
- 3. These structures help blood to clot
- 6. The upper chambers of the heart
- 8. Oxygen from the respiratory system + Nutrients from the digestive system = _________
- 9. tubes that carry blood throughout the entire body
- 11. The structure that separates the heart into two pumps