Suppose both excitatory and inhibitory neurons synapse with a single postsynaptic neuron. What determines if an action potential is initiated in the postsynaptic neuron?
A. the kind of neuron involved
B. the size of the neuron involved
C. whether the neuron is myelinated or non-myelinated
D. the number of EPSPs in relation to the number of IPSPs
E. This situation is not possible in humans.
D
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