Chapter 2: Biology

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Across
  1. 4. destruction of tissue.
  2. 5. the body's slower chemical communication system, consisting of glands that secrete hormones into the bloodstream.
  3. 9. neurotransmitter that triggers muscle contractions.
  4. 12. natural opiate-like neurotransmitters linked to pain control and to pleasure.
  5. 13. located at the back and base of the brain, these lobes contain the visual cortex, which receives information from the eyes.
  6. 15. located on the sides of the brain, these lobes contain the auditory areas, which receive information from the ears.
  7. 17. large band of neural fibers that links the right and left hemispheres.
  8. 21. division of the peripheral nervous system that controls the glands and the muscles of internal organs.
  9. 23. situated between the frontal and occipital lobes, these lobes contain the sensory cortex.
  10. 24. technique that measures the levels of activity of different areas of the brain by tracing their consumption of a radioactive form of glucose.
  11. 26. the part of the limbic system involved in regulation of the emotions of fear and rage.
Down
  1. 1. neural impulse generated by the movement of positively charged atoms in and out of channels in the axon's membrane.
  2. 2. the division of the nervous system that connect the brain and spinal cord to the body's sense receptors, muscles, and glands.
  3. 3. extension of a neuron that sends impulses to other nerve cells or to muscles or glands.
  4. 6. doughnut-shaped neural system that plays an important role in the regulation of emotions and basic physiological drives.
  5. 7. technique that uses magnetic fields and radio waves to produce computer-generated images of brain structures.
  6. 8. simple, automatic, inborn response to a sensory stimulus.
  7. 10. located just behind the forehead, these lobes are involved in speaking and muscle movements and in making plans and judgments.
  8. 11. glands that produce the hormones epinephrine and nor-epinephrine.
  9. 14. located in the brainstem, this structure controls breathing and heartbeat.
  10. 16. located at the back of the frontal lobe, the part of the cortex that controls voluntary movement.
  11. 18. junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron.
  12. 19. limbic system structure that regulates hunger, thirst, and body temperature and contains the so-called reward centers of the brain.
  13. 20. the thin outer covering of the cerebral hemispheres.
  14. 22. The brain and spinal cord, collectively, are the ______ nervous system.
  15. 25. amplified recording of the waves of electrical activity of the brain.