After a nerve impulse, a neuron is temporarily less likely to fire because
A)the cell is still above its resting level.
B)potassium ions flow out of the neuron while the ion channels are open.
C)acetylcholine acts as an inhibitor.
D)a positive after-potential has occurred.

Question

Quizplus · Accepted Answer

After a nerve impulse, potassium ions flow out of the neuron, causing the inside of the neuron to become more negative than its resting potential, making it less likely to fire again immediately.

After a Nerve Impulse, a Neuron Is Temporarily Less Likely