The passive current flow of a graded potential fades quickly.

Question

Quizplus · Accepted Answer

Graded potentials are short-lived changes in membrane potential that occur in response to stimuli. These changes are initiated by the opening of ion channels, which causes ions to flow across the membrane, creating a local change in the membrane potential. However, the passive current flow of a graded potential quickly fades due to the properties of the cell membrane and the resistance of the surrounding medium. As a result, graded potentials do not propagate over long distances and are limited to local regions of the membrane.

The Passive Current Flow of a Graded Potential Fades Quickly