Across
- 5. infection that usually doesn't affect you unless already sick
- 7. ventricle (one of the two bottom chambers of the heart)
- 11. two tubes that go from the trachea to each lung
- 12. arteries
- 14. plaque buildup
- 16. involuntary contraction
- 18. fatal
- 19. record/recording
- 20. to expand
- 21. heart
- 22. a tube you put down
- 23. growth; development
Down
- 1. the process of clotting
- 2. to turn or roll
- 3. wall
- 4. any therapy that decreases or stimulates the antigen/antibody response
- 6. drug that decreases the antigen/antibody response
- 7. vessels
- 8. lung
- 9. vessels
- 10. to get smaller in diameter
- 13. the heart between beats, at rest
- 15. contraction
- 17. lung
- 19. picture or printout of a test result
