Across
- 3. the thing the body fights off
- 6. hold urine for a short time
- 7. the redness or swelling caused by a forign substance in the body
- 8. when the body has fought the sickness before
- 10. the microscopic unit that filters blood
- 12. the body system for fighting sickness
- 14. a higher tempiture than a normmal one
Down
- 1. the thing that is caused by a forign substance in the body like what you have in the spring
- 2. the tube in the body that the urine travels in to leave the body
- 4. the disease that the body fights it own cells
- 5. filters the blood and waste from the body
- 9. waste from the body that travels in the urethra
- 11. the organ that filters waste
- 13. this takes waste to the urinary bladder