Across
- 4. spit
- 6. valve mitral valve
- 9. white blood cells
- 11. whooping caugh
- 13. mucous membrane/lining
- 14. bowel
- 16. breathing in
- 17. coagulate
- 18. red blood cells
- 20. lump, growth
Down
- 1. communicable
- 2. fatty deposits
- 3. alimentary tract
- 5. lightheadedness
- 7. roof of the mouth
- 8. chewing
- 10. platelets
- 12. tiredness
- 15. breathing out
- 19. stool