Chapter 2- Neuro Science and the Brain

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Across
  1. 3. brain and spinal cord (CNS)
  2. 5. sensory and motor neurons that connect the central nervous system to the rest of the body (PNS)
  3. 9. these inhibit the next neuron from firing (GABA affects them)
  4. 11. neurotransmitter that affects sleep, movement, and has an inhibitory effect on axons; associated problems are anxiety, Huntington's disease, and epilepsy
  5. 13. a polarized cell; Na+ on outside of cell and K+ inside the cell (-70 millivolts)
  6. 15. block a neurotransmitter's functioning or fit into receptor sites to block firing
  7. 16. neurotransmitter that affects movement and memory; an associated problem is Alzeimer's
  8. 17. division of peripheral nervous system that controls our skeletal muscles (voluntary)
  9. 18. division of peripheral nervous system that controls muscles and glands of our internal organs (involuntary)
  10. 19. a neurotransmitter that affects sleep, hunger, aggression, and arousal; associated problems are depression and anxiety, and it inhibits dreaming
  11. 20. neurotransmitter that affects mood and emotion; an associated problem is Parkinson's if too little; an associated problem is schizophrenia if too much
  12. 21. neurotransmitter that is a natural opiate, pain reliever, and pleasureable emotion; no established problems
Down
  1. 1. division of autonomic nervous system that prepares you for fight or flight by arousing the body in stressful situation
  2. 2. pair of endocrine glands above the kidneys that secrete the hormones epinephrine (adrenaline) and norepinephrine (noradrenaline) which help arouse the body in stressful times
  3. 4. molecule similar to neurotransmitters that mimic their effect or block the ruptake; an example is morphine
  4. 6. "recharging phase" of a neuron; 1/1000 of a second; NA+ moves out of the cell and K+ moves back into the cell
  5. 7. chemical messengers that travel across the synaptic gap between the neurons
  6. 8. division of autonomic nervous system that calms you down
  7. 10. these stimulate the next neuron to fire (ACH affects them)
  8. 12. when the sending neuron reabsorbs excess neurotransmitters
  9. 14. generated by movement of Na+ into nerve cell and K+ out of the nerve cell (depolarization) (+40 millivolts)