An IPSP is inhibitory because it A) changes the threshold of the neuron. B) hyperpolarizes the postsynaptic membrane. C) prevents Ca²⁺ entry into the presynaptic terminal. D) reduces the amount of neurotransmitter released by the presynaptic terminal. E) depolarizes the postsynaptic membrane.

Question

Quizplus · Accepted Answer

An IPSP (Inhibitory Postsynaptic Potential) is inhibitory because it hyperpolarizes the postsynaptic membrane, making the neuron less likely to fire an action potential.

An IPSP Is Inhibitory Because It