Across
- 1. System that activates muscles and glands
- 3. System that includes the esophagus
- 8. System that gets rid of wastes and carbon dioxide
- 10. System that maintains acid-base balance
- 11. System that produces heat
Down
- 2. System that creates blood cells
- 4. System that synthesizes vitamin D
- 5. System including the testes and ovaries
- 6. System that returns fluids to blood vessels
- 7. System the secretes and controls hormone flow through the body
- 9. System that removes carbon dioxide