Across
- 3. yellowing of the skin and eyes
- 6. condition that occurs when pathogens enter the body, multiply, and damage body cells
- 8. System network of cells, tissues, organs, and chemicals that fight off pathogens
- 9. a white blood cell that attacks invading pathogens
- 11. A protein that acts against a specific antigen
- 12. usually an arthropod (tick) that carries and transmit pathogens to humans or other animals
- 15. A condition in which the immune system mistakenly attacks itself, targeting the cells, tissues, and organs of a person’s own body
- 16. specialized white blood cells that provide the body with immunity
- 19. pieces of genetic material surrounded by a protein coat
- 20. preparation of dead or weakened pathogens that are introduced into the body to stimulate an immune response
Down
- 1. a disease that is spread from one living thing to another through the environment
- 2. an infection of the lungs in which that air sacs fill with pus and other liquid
- 4. a reaction to tissue and damage caused by injury or infection
- 5. single-celled microorganisms
- 7. organism that causes disease
- 10. the state of being protected against a particular disease
- 13. an abnormal condition that negatively affects the structure and function of all or part of the body
- 14. substance that kills cells or interferes with their functions
- 15. A substance capable of triggering an immune response
- 17. a form of cancer in which any one of the different types of white blood cells is produced excessively and abnormally
- 18. A specific reaction of the immune system to a foreign and frequently harmless substance