Across
- 3. primary hormone produced by the adrenal gland
- 5. receives signals
- 6. building blocks
- 7. "fight or flight" response
- 9. connections between cells
- 12. outside the central nervous system
- 13. heart rate and digestion.
- 14. voluntary movements of skeletal muscles
Down
- 1. "rest and digest" activities.
- 2. bridge between the endocrine and nervous systems
- 4. "master gland"
- 7. causes the release of adrenaline from the adrenal glands
- 8. off and on
- 10. cell body of a neuron
- 11. brain and spinal cord
- 13. transmits electrical impulses