At an excitatory synapse, A)There is increased permeability of the postsynaptic cell to both Na⁺ and K⁺ B)A small hyperpolarization occurs C)An action potential in the presynaptic neuron always causes an action potential in the postsynaptic neuron D)Both there is increased permeability of the postsynaptic cell to both Na⁺ and K⁺ and a small hyperpolarization occurs are correct E)None of the choices are correct

Question

Quizplus · Accepted Answer

At an excitatory synapse, neurotransmitter release increases the permeability of the postsynaptic cell to Na+ and K+, leading to depolarization.

At an Excitatory Synapse