Across
- 4. Detects stimuli from the environment
- 7. A change in the environment that causes a response
- 10. Chemical substances that coordinate body activities
- 11. Part of the brain that controls voluntary actions
- 14. The process of linking body activities
Down
- 1. System The system that includes the brain and spinal cord
- 2. The control center of the nervous system
- 3. The automatic response to a stimulus
- 5. Sense organ for detecting light
- 6. Receptors in the skin detect this type of stimulus
- 8. Cord The pathway for messages between brain and body
- 9. Connects the brain and spinal cord to the rest of the body
- 12. Responds to stimuli in the environment
- 13. The reaction to a stimulus