012909bhomework - Homework due 1/29/09 Name _ 1. Name the 3...

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Homework due 1/29/09 Name ________________________________________ 1. Name the 3 brain mechanisms important in the onset of S-sleep. 2. Describe how the nucleus of the solitary tract promotes sleep and describe the situations under which this sleep promoting area of the brain is activated. Is this a primary or secondary sleep mechanism? How does this mechanism relate to the predictions of Moruzzi and Magoun's model? 3. Describe the role of the POA in sleep onset. What internal conditions activate the POA to cause sleepiness. Describe the types of circumstances under which this sleep is induced. When is this sleep onset adaptive? How does this mechanism relate to the predictions of Moruzzi and Magoun's model? 4. Describe the circadian rhythm of adenosine secretion. How do adenosine levels cause us to fall asleep each night. Where does the adenosine come from? How would you characterize the importance of this sleep mechanism in relation to the other two that were described earlier? How does coffee keep us awake? How does
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This note was uploaded on 11/03/2009 for the course BIOS 277 taught by Professor Nyby during the Spring '09 term at Lehigh University .

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012909bhomework - Homework due 1/29/09 Name _ 1. Name the 3...

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