What would most likely lead to an inhibitory postsynaptic potential (IPSP)?
A)opening of calcium ion channels
B)opening of sodium ion channels
C)closure of chloride ion channels
D)opening of potassium ion channels

Question

Quizplus · Accepted Answer

Opening of potassium ion channels often leads to an inhibitory postsynaptic potential (IPSP) because it results in the efflux of K+ ions, making the inside of the cell more negative and thus hyperpolarizing the neuron. This hyperpolarization moves the membrane potential further from the threshold needed to trigger an action potential, inhibiting neuronal firing.

What Would Most Likely Lead to an Inhibitory Postsynaptic Potential