The Nervous System and the Brain

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Across
  1. 2. The body's reaction to a stimulus.
  2. 6. One of the two halves of the cerebrum, connected by the corpus callosum.
  3. 7. The basic functional unit of the nervous system that transmits nerve impulses.
  4. 8. Describes neurons that carry impulses from the central nervous system to muscles or glands.
Down
  1. 1. The largest region of the brain responsible for higher cognitive functions, voluntary movement, and sensory perception.
  2. 3. The tenth cranial nerve that plays a major role in parasympathetic regulation of the heart, lungs, and digestive tract.
  3. 4. The lipid-rich insulating sheath that surrounds many axons and increases the speed of nerve impulse conduction.
  4. 5. Branch-like extensions of a neuron that receive signals from other nerve cells.