Which of the following moves the membrane potential of the postsynaptic neuron closer to threshold?
A)inhibitory postsynaptic potential (IPSP)
B)hyperpolarization
C)opening of potassium ion channels
D)excitatory postsynaptic potential (EPSP)

Question

Quizplus · Accepted Answer

An excitatory postsynaptic potential (EPSP) moves the membrane potential of the postsynaptic neuron closer to threshold by depolarizing the membrane, making it more likely for an action potential to occur. In contrast, an inhibitory postsynaptic potential (IPSP) or hyperpolarization move the membrane potential further away from threshold, making it less likely for an action potential to occur. The opening of potassium ion channels can also lead to hyperpolarization, which makes it less likely for an action potential to occur.

Which of the Following Moves the Membrane Potential of the Postsynaptic