spike potential

potential /po·ten·tial/ (po-ten´shal)

1. existing and ready for action, but not active.

2. the work per unit charge necessary to move a charged body in an electric field from a reference point to another point, measured in volts.

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action potential  (AP) the electrical activity developed in a muscle or nerve cell during activity.

after-potential  afterpotential.

electric potential , electrical potential potential (2).

evoked potential  (EP) the electrical signal recorded from a sensory receptor, nerve, muscle, or area of the central nervous system that has been stimulated, usually by electricity.

membrane potential  the electric potential existing on the two sides of a membrane or across the cell wall.

resting potential  the potential difference across the membrane of a normal cell at rest.

spike potential  the initial, very large change in potential of an excitable cell membrane during excitation.

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spike potential

n.

The main wave in the action potential of a nerve that is followed by negative and positive afterpotentials.

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potential

1. existing and ready for action, but not active.

2. electric tension or pressure.

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action potential

see action potential.

after-potential

the period following termination of the spike potential.

membrane potential

see membrane potential.

resting potential

the potential difference across the membrane of a normal cell at rest.

spike potential

the initial, very large change in potential of an excitable cell membrane during excitation.

zeta potential

a net negative charge.

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spike potential

Neurology A single rapid, 100–200 msec voltage 'transient' that occurs spontaneously in electromyography in smooth muscle cells, when they have resting membrane potentials above the SP threshold, as occurs in the lower esophageal sphincter. See M spike.