Lecture-14 LGICs - The action potential travels down the...

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The action potential travels down the axon and causes neurotransmitter release. This is chemical neurotransmission.
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Neurotransmitters are small molecules released by neurons which bind receptors and elicit functional effects. Dopamine Serotonin Glutamate GABA Acetylcholine
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What do neurotransmitters do? Excitatory postsynaptic potentials ( EPSPs ) increase the likelihood of action potential generation in the postsynaptic cell (increases membrane potential). Inhibitory PSPs ( IPSPs ) decrease the likelihood of action potential generation (decrease membrane potential).
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Nature of postsynaptic cell’s response to neurotransmitter depends on: the type of neurotransmitter released the type of receptor (s) on the postsynaptic cell the magnitude of the response to neurotransmitter which itself depends on: quantity of neurotransmitter released receptor numbers state of the receptors
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Two major types of neurotransmitter receptors Ionotropic – Neurotransmitter binding causes a
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Lecture-14 LGICs - The action potential travels down the...

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