Respiratory System

Respiratory System

Mrs. Allen

crossword puzzle using vocabulary terms

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10 11

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24

Across

4. tiny hairs

5. windpipe

6. describes breathing

9. part of lung

10. bone-like substance

13. bronchial _______

17. tiny air sac of the lung

18. carries oxygen

19. organs for breathing

22. Lung with three lobes

23. let air out

24. membranes

Down

1. protects lungs and heart

2. Strong breathing muscles

3. using air

4. describes sinuses

7. vessels to heart

8. four chambered organ

11. alveoli

12. Thick fluid in sinuses

14. Lung with two lobes

15. air sacs

16. opening for air

20. what we breathe

21. element we need to live

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