Across
- 1. - a chemical that comes from proteins
- 3. - a hollow, muscular organ that pumps blood throughout the body
- 8. - small tube where urine leaves the body
- 10. - filtering factories in the kidneys that remove wastes from blood and produce urine
- 11. - remove urea and other waste from blood while keeping important materials
- 13. - two upper chambers receives blood
- 14. - two lower chambers pump blood out of the heart
Down
- 1. - 2 narrow tubes that bring urine from the kidneys
- 2. - carry blood away from heart
- 4. - carbon dioxide is removes when you exhale
- 5. - regulate the amount of water in the body
- 6. - blood from the arteries come here to exchange substances with cells
- 7. - carry blood to heart
- 9. bladder - muscular organ that stores urine
- 12. - separate atria and ventricles