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单词 Electrophysiologic
释义

Electrophysiologic

英语例句库

The electrophysiologic substrate for RBD on polysomnography is rapid eye movement sleep without atonia.

RBD多导睡眠图的电生理基础是无张力减低的快动眼睡眠。

英语百科

Electrophysiology

The voltage clamp uses a negative feedback mechanism. The membrane potential amplifier measures membrane voltage and sends output to the feedback amplifier. The feedback amplifier subtracts the membrane voltage from the command voltage, which it receives from the signal generator. This signal is amplified and returned into the cell via the recording electrode.
The cell-attached patch clamp uses a micropipette attached to the cell membrane to allow recording from a single ion channel.
A schematic diagram showing a field potential recording from rat hippocampus. At the left is a schematic diagram of a presynaptic terminal and postsynaptic neuron.  This is meant to represent a large population of synapses and neurons.  When the synapse releases glutamate onto the postsynaptic cell, it opens ionotropic glutamate receptor channels.  The net flow of current is inward, so a current sink is generated.  A nearby electrode (#2) detects this as a negativity.  An intracellular electrode placed inside the cell body (#1) records the change in membrane potential that the incoming current causes.

Electrophysiology (from Greek ἥλεκτρον, ēlektron, "amber" [see the etymology of "electron"]; φύσις, physis, "nature, origin"; and -λογία, -logia) is the study of the electrical properties of biological cells and tissues. It involves measurements of voltage change or electric current on a wide variety of scales from single ion channel proteins to whole organs like the heart. In neuroscience, it includes measurements of the electrical activity of neurons, and particularly action potential activity. Recordings of large-scale electric signals from the nervous system, such as electroencephalography, may also be referred to as electrophysiological recordings.

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更新时间:2025/6/20 5:09:34