Across
- 3. A chemical messenger that transmits signals across a synapse between neurons.
- 6. The endpoint of an axon that releases chemical signals to communicate with other cells.
- 7. A fatty layer that surrounds some axons, helping electrical signals travel faster.
- 8. Gaps in the myelin sheath that allow the nerve impulse to “jump”.
Down
- 1. The main part of a neuron that contains the nucleus and controls the cell’s activities.
- 2. A nerve cell that transmits electrical signals throughout the body.
- 4. Branch-like extensions that receive signals from other neurons.
- 5. A long fiber that carries electrical impulses away from the cell body to other neurons or muscles.