The dendrites of a neuron interact with several different axon terminals. Some of them are sending excitatory signals, while others are sending inhibitory signals. Over the course of the effects of these signals, the neuronal membrane potential reaches around -90mV. This means, overall, that the neuron will be
A)excited enough to easily cross threshold and generate an action potential.
B)excited, but not enough to cross threshold.
C)stabilized to remain at resting potential.
D)inhibited from generating action potentials.

Question

Quizplus · Accepted Answer

The neuronal membrane potential reaching around -90mV, which is more negative than the typical resting potential of around -70mV, indicates hyperpolarization. This makes it harder for the neuron to reach the threshold needed to generate an action potential, thus inhibiting it from firing.

The Dendrites of a Neuron Interact with Several Different Axon