Nervous System Medical Terminology

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Across
  1. 2. a procedure that stops action potentials from transmitting, usually for the purpose of stopping pain sensation
  2. 4. an organ made up of a bundle of neurons wrapped in connective tissue
  3. 5. the collective name for the three layers of tissue that cover and protect the brain and spinal cord
  4. 8. the cells that serve to support neurons
  5. 9. if you need your brain checked for a disorder, a doctor who specializes in this science is who you want to see
  6. 11. slowness in responding to a stimulus
  7. 13. the portion of a nerve that carries action potentials away from the cell body
  8. 14. the part of a neuron that collect messages into the cell body
  9. 16. a cell that transmits messages, called action potentials, in the form of electrical currents
  10. 19. a state of confusion and disorientation
  11. 20. a level just high enough to activate a neuron
  12. 21. a quick, automatic action triggered by a sensory input
Down
  1. 1. the location where one neuron communicates to another
  2. 3. the part of a neuron containing the nucleus and other organelles that are also present in other cell types
  3. 6. a chemical used to communicate from neuron to neuron
  4. 7. the covering around some neurons that makes action potentials travel faster
  5. 10. the tissue makeing up the outer layer of a nerve
  6. 12. an area of skin supplied by one spinal nerve
  7. 15. the types of neurons that carry messages to muscles, organs and glands from the central nervous system
  8. 17. a networking arrangement of nerves
  9. 18. the type of neuron that carries action potentials from your skin or organs toward your brain and spinal cord