Unit 7 Nervous System - Vocabulary Review

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Across
  1. 2. ridge on the surface of the brain
  2. 5. a neuron that carries nerve impulses from one neuron to another
  3. 7. a threadlike extension of a neuron that carries active impulses toward the cell body
  4. 8. brain and spinal cord; is the control center for the body
  5. 15. (fight or flight) network of nerves by which activity increases when the body is in danger or stressed.
  6. 17. deep, often long groove on the surface of the brain
  7. 18. small gap at the end of a neuron that allows a signal to pass from one neuron to the next
Down
  1. 1. (rest and digest) controls the body’s ability to relax.
  2. 3. a cell that carries information through the nervous system
  3. 4. a bundle of nerve fibers
  4. 6. controls involuntary smooth muscle, cardiac muscle, and glands
  5. 9. three layers of membranes that protect the brain and spinal cord
  6. 10. shallow groove or depression on the surface of the brain surrounding the gyrus
  7. 11. delicate connective tissue which supports and binds together the elements of the CNS.
  8. 12. insulating layer that forms around nerves
  9. 13. receptors in the sense organs and nerves that communicate to the CNS
  10. 14. controls skeletal muscles
  11. 16. part of the neuron that conducts nerve impulses