Flashcards in Option A.5: Neuropharmacology Deck (10):
Define action potential
the impulse that moves down the presynaptic neuron
What is the purpose of excitatory neurotransmitters?
to generate an action potential by increasing the permeability of the postsynaptic membrane to positive ions
What is an example of an excitatory neurotransmitter?
What is an example of an inhibitory neurotransmitter?
What is the purpose of the inhibitory neurotransmitter?
inhibit action potentials by causing hyperpolarization of the neurone (the inside of the neuron becomes more negative)
Define fast-acting neurotransmitters
have an effect on the target cell within 1 millisecond of binding to a receptor
Define slow-acting neurotransmitters
have an effect on the target cell in hundreds of milliseconds or can take up to a minute
What are three examples of slow acting neurotransmitters?
dopamine, serotonin, and acetylcholine
What is another name for slow-acting NTs?