Image:Action potential vert.png

From Wikipedia, the free encyclopedia

Modified version of older Image:Action potential reloaded.jpg.

Caption (from action potential):

A. Schematic of an electrophysiological recording of an action potential showing the various phases which occur as the wave passes a point on a cell membrane. B. An actual action potential (blue trace) recorded from a mouse hippocampal pyramidal neuron. In this case, the action potential was stimulated by a prolonged pulse of current (brown trace; approx. 2 micro Amps)passed into the cell through the recording electrode. This method of stimulation distorts the AP compared to the schematic, in that the "real" action potential is sitting atop a voltage offset caused by the current pulse. Thus, for example, the "undershoot" is offset from the resting potential, although it would dip below rest if the offset were not present. The slow decline of the membrane potential back toward rest upon the termination of the current pulse reflects the long time constant of the neuronal membrane.


GFDL

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Subject to disclaimers.

File history

Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version.
Click on date to download the file or see the image uploaded on that date.

  • (del) (cur) 17:15, 18 August 2005 . . Memenen ( Talk | contribs) . . 795×1130 (297,386 bytes) (Modified version of older <nowiki> Image:Action potential reloaded.jpg</nowiki>. {{GFDL}} )

  • Edit this file using an external application

    See the setup instructions for more information.

The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
Retrieved from "http://en.wikipedia.org/wiki/Image:Action_potential_vert.png"