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9 Cards in this Set

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  • Back
  • 3rd side (hint)
Name the major CNS neurotransmitters
Acetylcholine
Norepinephrine
Dopamine
Serotonin
GABA and glycine—neutral amino acids
Glutamate/Aspartate—acidic amino acids
None
What types of receptors are most commonly found in the CNS
Ion-gated receptors (Na+, K+, CL-, Ca2+)
What are the primary functions of a neurotransmitter
To bind a receptor and subsequently either excite or inhibit the postsynaptic neuron
None
What are EPSPs
Excitatory postsynaptic potentials—initiated when an excitatory neurotransmitter activates Na or Ca channels
Give five examples of excitatory neurotransmitters
Acetylcholine
Norepinephrine
Dopamine
Glutamate
Aspartate
None
What are IPSPs
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
Give two examples of inhibitory neurotransmitters
Glycine
GABA
None
In general, how do drugs affecting the CNS work
Most drugs will affect production, storage, release, or metabolism of a neurotransmitter. Other agents may affect the postsynaptic receptor
What are the major differences between the autonomic nervous system and the central nervous system
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
None