Across
- 4. (a natural or innate behavior in animals)
- 6. (segments of DNA)
- 7. (the junction between two nerve cells)
- 11. (relating to hormones)
- 13. (a type of cell in the nervous system)
- 15. (a neurotransmitter)
- 16. (feelings of pity and sorrow for someone else's misfortune)
- 18. (a medical imaging technique)
- 19. (a neurotransmitter)
- 21. (a hormone)
- 22. (a hormone)
Down
- 1. (a natural instinctive state of mind deriving from one's circumstances)
- 2. (the customs, arts, social institutions, and achievements of a particular nation)
- 3. (a brain region)
- 5. (a nerve cell)
- 8. (the ability of the brain to change and adapt)
- 9. (a chemical messenger in the body)
- 10. (principles concerning the distinction between right and wrong or good and bad behavior)
- 12. (a medical test)
- 14. (a learning process)
- 17. (a hormone)
- 20. (a bundle of fibers)