An abrupt reversal in the electric gradient across the neuron plasma membrane is called a(n) ____.

A) resting potential
B) membrane potential
C) action potential
D) ion concentration gradient
E) electrochemical signal

Action Potential

A rapid, temporary change in electrical potential across a cell membrane, leading to the transmission of a nerve impulse along a neuron.

Electric Gradient

A difference in the electrical charge across a membrane, leading to a force that drives the movement of ions.

Neuron Plasma Membrane

The lipid bilayer that encloses the cytoplasm of a neuron, controlling the passage of ions and molecules in and out of the neuron.