Structure of a Neuron

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