Across
- 2. gap between two neurons
- 6. stem- controls involuntary functions
- 8. automatic movement in response to a stimulus
- 9. system -consists of organs and tissues that release chemical messages into the bloodstream
Down
- 1. system -gathers, processes, and responds to information
- 3. -relating to material things
- 4. cord -tubelike structure of neurons
- 5. -disturbance that transfers energy without transferring matter
- 7. photoreceptor in the eye that distinguishes shapes of objects
- 8. automatic movement in response to a stimulus