Across
- 5. A nerve cell that sends electrical signals
- 9. Tiny non-living particles that invade host cells to reproduce
- 10. Disease where abnormal cells divide uncontrollably
- 11. Fast responses to stimulus that bypass the brain
- 12. Type of white blood cell that eats pathogens
- 13. Proteins made by white blood cells to fight pathogens
- 14. Microscopic organisms that can causes disease; some are helpful too
- 15. Gland located in the neck that controls metabolism
- 16. The gap between two neurons
- 17. Gland that produces insulin and digestive enzymes
- 19. Hormone that lowers blood sugar
- 21. Protein markers on pathogens that trigger immune responses
- 22. The type of neuron that sends messages from the brain to the muscles
- 23. Hormone produced by the adrenal glands in a "fight or flight" response
- 24. Abbreviation for the central nervous system
Down
- 1. Part of the brain responsible for balance and coordination
- 2. A chemical messenger made by glands
- 3. Hormone involved in male development
- 4. Diseases that can be passed from person to person
- 6. Type of membrane that lines body cavities and provides a physical barrier against pathogens
- 7. The process of receiving a dead or weakened pathogen to build immunity
- 8. Part of the nervous system that does not involve your spinal cord or brain
- 18. The type of neuron that sends messages from receptors to the brain
- 20. A change in the environment that causes a response