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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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il0veu08 il0veu08
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11 years ago
What are the primary functions of the sympathetic and parasympathetic divisions of the peripheral nervous system?  Describe a situation or experience that you have had in which activation of the sympathetic and parasympathetic divisions occur and the role that the sympathetic and parasympathetic systems played in that situation or experience. Be sure to identify the processes involved
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#1
11 years ago
Do a search on "Fight or Flight"
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#2
11 years ago
Put simply, Sympathetic - Fight or Flight, Parasympathetic - Rest or Repose...
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#3
11 years ago
As one of my pharmacology professors used to teach -

Sympathetic - "fight or flight"
imagine if a vicious wild animal came at you.  Your pupils would dilate, your heart and respiratory rates would increase, your peripheral blood vessels will constrict, your central larger blood vessels will dilate, and your gut will shut down.  

Parasympathetic - conservation
Increased secretion, increase gastric motility, sweating, slowed heart rate, constricted pupils.
The third and tenth cranials nerves are parasympathetic.
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