Flashcards: Electrophysiology

Electrooculography (EOG/E.O.G.) is a technique for measuring the corneo-retinal standing potential that exists between the front and the back of the human eye.

An ATP-sensitive potassium channel (or KATP channel) is a type of potassium channel that is gated by intracellular nucleotides, ATP and ADP.

An electrical synapse is a mechanical and electrically conductive link between two neighboring neurons that is formed at a narrow gap between the pre- and postsynaptic neurons known as a gap junction.

Electroencephalography (EEG) is an electrophysiological monitoring method to record electrical activity of the brain.

The sinoatrial node (often abbreviated SA node; also commonly called the sinus node and less commonly the sinuatrial node) is the normal natural pacemaker of the heart and is responsible for the initiation of the cardiac cycle (heartbeat).

Chronotropic effects (from chrono-, meaning time, and tropos, "a turn") are those that change the heart rate.

In physiology, an action potential is a short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory.

Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.

The epithelial sodium channel (short: ENaC, also: amiloride-sensitive sodium channel) is a membrane-bound ion-channel that is selectively permeable to Na+ ions and that is assembled as a heterotrimer composed of three homologous subunits α, β, and γ or δ, β, and γ.

Electrocardiography (ECG or EKG) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin.

Neural oscillation is rhythmic or repetitive neural activity in the central nervous system.

Inwardly rectifying potassium channels (Kir, IRK) are a specific subset of potassium (K+) selective ion channels.

Refractoriness is the fundamental property of any object of autowave nature (especially excitable medium) not to respond on stimuli, if the object stays in the specific refractory state.

Short QT syndrome is a genetic disease of the electrical system of the heart.

Electrocorticography (ECoG), or intracranial electroencephalography (iEEG), is a type of electrophysiological monitoring that uses electrodes placed directly on the exposed surface of the brain to record electrical activity from the cerebral cortex.

The voltage clamp is an experimental method used by electrophysiologists to measure the ion currents through the membranes of excitable cells, such as neurons, while holding the membrane voltage at a set level.

The L-type calcium channel (also known as the dihydropyridine channel, or DHP channel) is part of the high-voltage activated family of voltage-dependent calcium channel.

Voltage-gated potassium channels (VGKCs) are transmembrane channels specific for potassium and sensitive to voltage changes in the cell's membrane potential.

BK channels (Big Potassium), also called Maxi-K or slo1, are potassium channels characterized by their large conductance for potassium ions (K+) through cell membranes.

In biology, depolarization is a sudden change within a cell, during which the cell undergoes a dramatic electrical change.

A biosignal is any signal in living beings that can be continually measured and monitored.

SK channels (Small conductance calcium-activated potassium channels) are a subfamily of Ca2+-activated K+ channels.

Voltage-gated ion channels are a class of transmembrane proteins that form ion channels that are activated by changes in the electrical membrane potential near the channel.

ANNINE-6plus is a water soluble voltage sensitive dye (also called potentiometric dyes).

The P-type calcium channel is a type of voltage-dependent calcium channel.

The Q-type calcium channel is a type of voltage-dependent calcium channel.