BIOL 404-Exam 4-CNS 5

Card Set Information

BIOL 404-Exam 4-CNS 5
2013-04-28 19:01:53
BIOL 404 Exam CNS

BIOL 404-Exam 4-CNS 5
Show Answers:

  1. What are the major centers of sleep in the hypothalamus?
    • Posterior hypothalamus/tuberomamillary region
    • Anterior preoptic and basilar forebrain
  2. What is the major neurotransmitter of the posterior hypothalamus/tuberomamillary region?
  3. Why do allergy drugs make you drowsy?
    They prevent the histamine release of the brain that infers wakefulness
  4. What is orexin?
    • A chemical that is produced in the ganglion of the eye
    • It is transported to the tuberomamillary region
    • Regulates wakefulness/sleep via light sensation
  5. What is the sleep promoting area of the brain?
    The anterior preoptic and basilar forebrain of the hypothalamus
  6. The anterior preoptic and basilar forebrain of the hypothalamus have what function?
    Promotion of sleep
  7. What state is aminergic?
  8. What type of neurotransmitter is most common during wakefulness?
  9. What neurotransmitter is most common during REM sleep?
  10. Acetylcholine is a common Neurotransmitter during what stage of sleep?
  11. What neurotransmitter levels are low during REM sleep?
    • Serotonin
    • Norepinephrine
  12. When is histamine and GABA being released by the Hypothalamus?
    When Awake
  13. In Non-REM sleep what would you expect histamine and GABA levels to be?
  14. What is flip-flop?
    Opposite neurotransmitters during different sleep stages
  15. What generally happens to neurotransmitters from sleep to wake and back
    They change
  16. Each neurotransmitter is specific for what?
    Each part of the brain
  17. During Non-REM sleep what level of neurotransmitters would you expect?
    All low
  18. During REM sleep what neurotransmitter levels would you expect?
    All low except acetylcholine, which is high
  19. What cause active PGO waves?
  20. Different patterns of neurotransmitters show what?
    Different sleep stages
  21. Different sleep stages have different what?
    • Neurotransmitters
    • EEG
  22. What three things play a role in mechanism of circadian rhythms?
    • Suprachiasmatic nuclei
    • Melatonin
    • genes
  23. What area of the body will cause non-normal periods of sleep and wakefulness if damaged?
    Suprachiasmatic nuclei
  24. What two genes regulate sleep?
    • Period
    • Timeless
  25. Increase in activity of Period and timeless occurs where?
    Neurons of surachiasmatic nuclei
  26. What are period and timeless involved in?
    Establishing sleep and wake periods