Which statement is incorrect?
A) Inhibitory synapses cause postsynaptic hyperpolarization.
B) An inhibitory synapse may result in postsynaptic sodium channel opening.
C) Inhibitory synapse may result in increased postsynaptic potassium efflux.
D) An excitatory synapse causes depolarization of postsynaptic membranes.
E) An excitatory synapse increases sodium permeability.

Question

Quizplus · Accepted Answer

Inhibitory synapses typically result in postsynaptic hyperpolarization through the opening of potassium ion channels or the closing of sodium ion channels. It is not common for an inhibitory synapse to result in the opening of sodium channels, which would depolarize the postsynaptic membrane.

Which Statement Is Incorrect