How Much Do You Really Know About Sleep?
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Questions and Answers

Which part of the brain is the main regulator of circadian rhythm?

  • Pineal gland
  • Reticular activating system
  • Supra-chiasmatic nucleus (correct)
  • Hypothalamus

    • What are the two types of sleep?

  • Light sleep and deep sleep
  • Dreamless sleep and dreamful sleep (correct)
  • NREM sleep and REM sleep
  • Slow-wave sleep and REM sleep

    • What physiological changes occur during sleep?

  • Pulse rate and blood pressure increase
  • Threshold for pain is raised
  • Urine volume and salivary secretions increase
  • Volume and rate of respiration decrease (correct)

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