Every neuron has a separation of electrical charge across its cell membrane, and the membrane potential results from a separation of positive and negative. The relative excess of positive charges outside and negative charges inside the membrane of a...

Certain cells within the nervous system are called "excitable cells." Surrounding each of these cells is a highly complex, semipermeable membrane, an insulating barrier which separates fluids inside the cell from fluids outside. In the quiet state,...

The difference in electrical potential, measured in volts, that exists across a MEMBRANE when it is at rest (that is when it is not undergoing DEPOLARIZATION or HYPERPOLARIZATION). It is also known as the RESTING POTENTIAL and is normally...

Membrane potential (or transmembrane potential or transmembrane potential difference or transmembrane potential gradient), is the electrical potential difference (voltage) across a cell's plasma membrane. The plasma membrane bounds the cell to provide a...