neurotransmitters and neuromodulators DP 2 Flashcards
neurotransmitters glutamate
primary excitatory neurotransmitter in brain
enhances neural transmission by making the post synaptic neuron more likely to fire action potential
neurotransmitters GABA
primary inhibitory neurotransmitter in brain
makes post synaptic neurons less likely to fire an action potenial slowing down the neural transmission
neuromodulator dopamine
responsible for regulating voluntary movement, experience of pleasure, reward base learning
neuromodulator serotonin
responsible for regulating mood and sleep and generally has an inhibitor effects on post synaptic neuron
communication across synapse
- electrical impulse (action potential) reaches axon terminal
- calcium ions enter, causing the neurotransmitters to be released into the synaptic gap
- if the neurochemicals that acts as an key and the receptors that act as an lock have complementary shapes they will bind together
- the post synaptic neuron will respond(release action potential)
how neuromodulators effect the neurotransmitters
changes the responsiveness of receptor sites, therefor enhancing the excitatory and inhibitory effects of neurotransmitters
changes the release pattern of a neurotransmitter from the pre synaptic neuron