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Autonomic Nervous System

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Question
Answer
Parasympathetic nervous system's neurotransmitter   Acetylcholine  
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Symapthetic nervous system's neurotransmitters   epinephrine, norepinephrine, and dopamine  
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Adrenergic agonists act directly on the SNS by   1. direct receptor binding to organs or tissues 2. promotion of norepi release 3. mimicking the action of norepi or epi  
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4 main receptor types   alpha 1, alpha 2, beta 1, beta 2, and recently a beta 3 has been identified  
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Alpha 1 receptors are mostly associated with   excitation or stimulation  
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Alpha 2 receptors are mostly associated with   relaxation and inhibition of epi  
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Beta 1 receptors are found mostly in the   heart brain, kidney, lipocytes  
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Beta 2 receptors are located in the   smooth muscle of the eye, arterioles, venules, bronchioles, liver, pancreas, GI and GU tracts  
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Created by: heatherbrown2020
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