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Why doesn't decreased insulin secretion during stress cause problems?

  1. Aug 31, 2013 #1
    During fight-or-flight situations, alpha 2 receptors ( which are inhibitory receptors ) of the pancreatic beta cells are stimulated, and as a result there's decreased insulin production. While it benefits the body by producing increased blood sugar level, I don't understand why Insulin doesn't cause some problems. Such as, since insulin increases glucose intake by the muscle tissues ( skeletal muscles are supposed to be used more in flight-or-fight situations ) and increases glycolysis ( which produces energy ), wouldn't decreased insulin release during flight-or-fight situations cause less glucose intake and less glycolysis ( as a result less energy production ) by the muscle tissues? And wouldn't less energy produced by the muscle tissues cause them work less efficiently?
  2. jcsd
  3. Aug 31, 2013 #2


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    Gold Member



    Reference [20] (a text book):

  4. Sep 1, 2013 #3
  5. Oct 31, 2013 #4
    Overall ongoing research also confirms that muscles can increase their glucose uptake
    via other receptors or channels independent of INSULIN also.
    Adrenaline pumps them up !

    reference Ganong medical physiologe 23 edition.
    Last edited by a moderator: Oct 31, 2013
  6. Oct 31, 2013 #5


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    Staff: Mentor

    Please post a link to the specific passage you are referencing in this book. Thank you. The book is copyrighted, so you may only quote the specific passage.
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