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Excitatory Neurotransmitter + post synaptic potentials gratis-png-neurona…
Excitatory Neurotransmitter + post synaptic potentials
types of excitatory neurotransmitters
Acetylcholine
Epinephrine
Histamine
Dopamine
Glutamate
Non propagated electrical that developsa the process of synaptic transmission
Opening of vesicles and release of ACH by exocytosis
passage of ACH through synaptic cleft
Influx of calcium ions from ECF into the axon terminal
formation of neurotransmitter complex ACH -receptor complex
opening of calcium channels in presynaptic membrane
opening of sodium channels and influx of sodium ion from ECF
Arrival of action potential in axon terminal
Development of EPSP and opening of sodium channels in initial segment of axon
influx of sodium from ECF and development of A.p
spread of A.P through axon of post synaptic neuron
PROPERTIES
graded potential
similar to receptor and endplate potential
Confined to synape !
MECHANISM OF EPSP DEVELOPMENT
EPSP LOCAL POTENTIAL
Mild depolarization
opening of sodium channel ECF
neurotrnsmitter complex
