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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Name the major CNS neurotransmitters
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Acetylcholine
Norepinephrine Dopamine Serotonin GABA and glycine—neutral amino acids Glutamate/Aspartate—acidic amino acids |
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What types of receptors are most commonly found in the CNS
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Ion-gated receptors (Na+, K+, CL-, Ca2+)
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What are the primary functions of a neurotransmitter
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To bind a receptor and subsequently either excite or inhibit the postsynaptic neuron
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None
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What are EPSPs
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Excitatory postsynaptic potentials—initiated when an excitatory neurotransmitter activates Na or Ca channels
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Give five examples of excitatory neurotransmitters
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Acetylcholine
Norepinephrine Dopamine Glutamate Aspartate |
None
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What are IPSPs
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Inhibitory postsynaptic potentials—initiated when an inhibitory neurotransmitter opens chloride channels and the cell membrane becomes hyperpolarized. IPSPs make it more difficult for the neuron to become activated
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Give two examples of inhibitory neurotransmitters
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Glycine
GABA |
None
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In general, how do drugs affecting the CNS work
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Most drugs will affect production, storage, release, or metabolism of a neurotransmitter. Other agents may affect the postsynaptic receptor
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What are the major differences between the autonomic nervous system and the central nervous system
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There are three major differences:
The number of neurotransmitters is greater in the CNS The number of synapses is greater in the CNS The CNS, unlike the autonomic nervous system, has a large array of inhibitory neurons to serve to modulate action |
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