why synaptic transmission is unidirectional
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Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels.
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Answer:
No
Explanation:
A nerve impulse travels from one neuron to another neuron through a junction called synapse. It is formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron and may or may not be separated by synaptic cleft.
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