A neuron receives a stimulation that causes Cl- channels to open, resulting in a hyperpolarization of the neuronal membrane. This situation is an example of a(n)
A)facilitated potential.
B)divergence.
C)excitatory postsynaptic potential.
D) inhibitory postsynaptic potential.

Question

A neuron receives a stimulation that causes Cl- channels to open, resulting in a hyperpolarization of the neuronal membrane. This situation is an example of a(n)
A)facilitated potential.
B)divergence.
C)excitatory postsynaptic potential.
D) inhibitory postsynaptic potential.

Quizplus · Accepted Answer

The opening of Cl- channels results in an influx of negatively charged ions into the neuron, making the potential across the membrane more negative. This makes it more difficult for the neuron to reach its threshold for firing an action potential, resulting in an inhibitory effect on the neuron's activity. Therefore, this situation is an example of an inhibitory postsynaptic potential.

A Neuron Receives a Stimulation That Causes Cl- Channels to Open