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Electrical synapse: Quiz


Question 1: Compared to ________, electrical synapses conduct nerve impulses faster, but unlike chemical synapses they do not have gain (the signal in the post synaptic neuron is always smaller than that of the originating neuron).
Chemical synapsePhotoreceptor cellSynaptic vesicleNeuromuscular junction

Question 2: Electrical synapses are abundant in the retina and ________ of vertebrates.
CerebrumCerebral cortexHuman brainGrey matter

Question 3: ________ (axon hillock, axon terminals, axoplasm, axolemma, neurofibril/neurofilament)
Nervous systemNeuronAxonSchwann cell

Question 4: Thus when the voltage of one cell changes, ________ may move through from one cell to the next, carrying positive charge with them and depolarizing the postsynaptic cell.
ElectrolyteLithium-ion batteryIonHalf cell

Question 5: The simplicity of electrical synapses results in synapses that are fast, but can only produce simple behaviors compared to the more complex ________.
NeuronChemical synapsePhotoreceptor cellNeuromuscular junction

Question 6: Electrical synapses were first demonstrated between escape-related giant neurons in ________ in the late 1950s, and were later found in vertebrates.

Question 7: An electrical synapse is a mechanical and electrically conductive link between two abutting neuron cells that is formed at a narrow gap between the pre- and postsynaptic cells known as a ________.
HistologyGap junctionDesmoplakinCell junction


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