Across
- 5. Detects stimuli and sends information to the central nervous system.
- 6. A fatty layer that insulates axons, speeding up signal transmission.
- 9. A voluntary or involuntary response to an external event.
- 10. Transmits impulses from the brain or spinal cord to muscles or glands.
- 12. Comprises the brain and spinal cord, controlling body functions and responses.
- 13. Cells that produce the myelin sheath in the peripheral nervous system.
- 14. A chemical messenger that transmits signals across a synapse.
- 16. A branching extension that receives signals from other cells.
Down
- 1. Contains the nucleus and organelles, maintaining neuron function.
- 2. Connects neurons within the brain and spinal cord, facilitating communication.
- 3. A protein that binds to neurotransmitters, triggering a response in the receiving cell.
- 4. Gaps in the myelin sheath that facilitate rapid nerve impulse conduction.
- 7. The control center of a neuron, housing genetic material.
- 8. The endpoints of an axon, where signals are transmitted to other neurons or effectors.
- 9. An automatic, rapid response to a stimulus without conscious thought.
- 11. A junction where communication occurs between two neurons or between a neuron and another structure.
- 15. A long fiber that conducts electrical impulses away from the cell body.
