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Fifteen different presynaptic neurons synapse on a
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Answer #1

RMP OF POSTSYNAPTIC NEURON=-70mV

TOTAL POSTSYNAPTIC POTENTIAL BY PRESYNAPTIC NEURONS= (2mV*14)+ (-9mV)=28mV-9mV=19 mV

So,the postsynaptic neuron would depolarize and action potentials would be produced.

This is an example of spatial summation. The effect produced by a particular neuron to be able to achieve an action potential is referred to temporal summation whereas, spatial summation is the method of achieving an action potential in a neuron which receives input from several cells. In this case involvement of 15 presynaptic neurons makes it an example of spatial summation.

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