(Video: Neural Communication) An excitatory postsynaptic potential ________ a target neuron, and an inhibitory postsynaptic potential ________ a target neuron.

Question

Quizplus · Accepted Answer

An excitatory postsynaptic potential (EPSP) depolarizes a target neuron by allowing positive ions to enter, making the neuron more likely to fire an action potential. In contrast, an inhibitory postsynaptic potential (IPSP) hyperpolarizes a target neuron by allowing negative ions to enter or positive ions to exit, making the neuron less likely to fire an action potential. Therefore, the best choice is C, which states that an EPSP depolarizes a target neuron, and an IPSP hyperpolarizes a target neuron.

(Video: Neural Communication) an Excitatory Postsynaptic Potential ________ a Target