Across
- 1. meaning heart
- 2. name of a type of cell that doesn't have a nucleus
- 4. something that the respiratory system helps us do.
- 7. name of the cells in the nervous system
- 8. name of a type of cell that has a nucleus
Down
- 1. nickname for the cardiovascular system
- 3. the system that has organs to help us breathe
- 5. meaning blood vessels
- 6. an organ in the respiratory system