The nurse understands that these receptors are believed to control neurotransmitter release at the presynaptic neuron in the autonomic nervous system:
a. beta-2. c. alpha-2.
b. beta-1. d. alpha-1.
ANS: C
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A Incorrect: These are not the neurotransmitter "controllers."
B Incorrect: These are not the neurotransmitter "controllers."
C Correct: Alpha-2 receptors are believed to be the "controllers" of neurotransmitter release at the presynaptic neuron.
D Incorrect: These are not the neurotransmitter "controllers."
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