Nervous System

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Across
  1. 2. sustentacular tissue that surrounds and supports neurons in the central nervous system
  2. 3. short fiber that conducts toward the cell body of the neuron.
  3. 5. long nerve fibers that conduct impulses away from a cell
  4. 6. a system consists of the brain and spinal cord and is enclosed within the skull and backbone
  5. 10. Non- conducting cells of neural tissue that support, protect, and insulate the neurons.
  6. 11. a system that comprises all other nerves.
  7. 14. a junction that mediates information transfer from one neuron to the next or from a neuron to an effector cell.
  8. 15. the first neurotransmitter identified
Down
  1. 1. What system is composed of somatic motor nerve fibers that conduct impulses from the CNS to skeletal muscle?
  2. 4. The central nervous system is made up of two types of cells
  3. 7. a bundle of fibers running to organs and tissues of the body
  4. 8. The central nervous system is made up of two types of
  5. 9. Fatty insulating sheath that surrounds all but the smallest nerve fibers.
  6. 10. the sensory and control apparatus consisting of a network of nerve cells
  7. 12. acts as natural painkillers, reducing our perception of pain under certain stressful conditions.
  8. 13. nerve cells