Nervous Vocab Crossword

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Across
  1. 7. A division of the peripheral nervous system allows us to consciously control our skeletal muscles.
  2. 8. A specialized structure that is activated by specific changes occurring nearby.
  3. 11. A white fatty lipid substance that forms a sheath-like covering around the axon.
  4. 13. The branching extensions of neurons that carry electrical signals to the cell body.
  5. 14. An organ, gland, or muscle capable of being activated by nerve endings.
  6. 15. An electrical event occurring when a stimulus of sufficient intensity is applied to a neuron or muscle.
  7. 16. A division of the autonomic nervous stem that allows us to “unwind” and conserve energy.
Down
  1. 1. A division of the autonomic nervous system that mobilizes the body during extreme situations.
  2. 2. Chemical released by neurons that may cause stimulation or inhibition.
  3. 3. A network of interlaced nerves, blood vessels or lymphatics.
  4. 4. The region of communication between neurons, or between a neuron and muscle cell.
  5. 5. The membranes that covers the brain and spinal cord.
  6. 6. Portion of nervous system that consists of brain and spinal cord.
  7. 9. A rapid, automatic reaction to a stimulus.
  8. 10. The division of nervous system that controls involuntary actions.
  9. 12. Sheath formed from Schwann cells, external to the myelin sheath.
  10. 16. A system of nerves that connects the outlying parts of the body with the central nervous system.
  11. 17. Neuron process that carries impulse away from a nerve cell body.