When a neuron is sufficiently stimulated it
A) becomes very negatively charged relative to outside of the cell.
B) initiates an action potential.
C) expands in size.
D) closes all of its membrane pores.

Question

Quizplus · Accepted Answer

When a neuron is sufficiently stimulated, it initiates an action potential. This is a brief change in the neuron's membrane potential that allows it to transmit information to other neurons or to other cells in the body. Option A is incorrect because the neuron actually becomes positively charged relative to the outside of the cell during an action potential. Option C is incorrect because the size of the neuron does not change during an action potential. Option D is incorrect because closing all of the membrane pores would prevent the neuron from transmitting information to other cells.

When a Neuron Is Sufficiently Stimulated It