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18 Cards in this Set
- Front
- Back
What are the two general functions of neurotransmitters? |
1. To mediate rapid communication between neurons through excitatory or inhibitory electrical events. |
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What is the most common excitatory neurotransmitter in the central nervous system (CNS)?
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Glutamate |
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What is the most common inhibitory neurotransmitter in the central nervous system (CNS)?
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Gamma-aminobutyric acid (GABA)
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What is the main neurotransmitter at neuromuscular junctions in the peripheral nervous system (PNS)?
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Acetylcholine
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Which two neurotransmitters are the most important in the autonomic nervous system?
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1. Acetylcholine
2. Norepinephrine |
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What are cholinergic neurons?
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They are neurons that use acetylcholine.
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With respect to the central nervous system, cholinergic neurons are primarily responsible for:
a) neuromodulation b) neurotransmission |
a) neuromodulation |
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What are the two main receptor types for acetylcholine in the central nervous system?
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1. Muscarinic |
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What are the main functions of acetylcholine in the central nervous system?
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1. attention |
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If cholinergic transmission is blocked in the central nervous system, what type of deficits will you see? |
1. Delirium
2. Memory deficits |
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what are the 2 subclasses for monoamines? |
catecholamines and serotinergic |
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what are the 3 NT's that are catecholamines? |
dopamine, norepinephrine, epinephrine
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what is the function of NE |
excitatory, rewarding, attention, and emotions |
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what is the function of DA? |
excitatory/inhibitory; rewarding |
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what is the function of Ep? |
excitatory, rewarding, attention, emotions |
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what are the NT's that are Amino Acids or Peptides? |
GABA, Glutamate, Beta--Endorphines, and Histamine |
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What can MAO break down? |
catecholamines (DA, NE, Ep) & serotinergic/serotonin |
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what is a disorder of dopamine? |
Parkinsons, Huntington's disease and tourettes |