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dsvcbhdjnskl dsvcbhdjnskl
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Posts: 571
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6 years ago
Morphine and other opiate drugs decrease sensitivity to pain by ____.
 
  a. depleting substance P from parts of the nervous system
  b. mimicking the effects of endorphins at the synapses
 c. preventing sodium from crossing the membrane
 d. altering blood flow to various parts of the nervous system
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6 years ago
b
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