File:AP propagation membrane model view.jpg
Jump to navigation
Jump to search
Size of this preview: 764 × 599 pixels. Other resolutions: 306 × 240 pixels | 612 × 480 pixels | 979 × 768 pixels | 1,225 × 961 pixels.
Original file (1,225 × 961 pixels, file size: 273 KB, MIME type: image/jpeg)
Captions
Captions
Add a one-line explanation of what this file represents
Summary[edit]
| Description |
English: A diagram in three parts showing how an action potential propagates down a membrane, using the electrical membrane model as a guide. A local depolarization opens local sodium channels. Sodium current causes membrane depolarization (T1) which spreads to adjacent membrane, depolarizing it as well (T2). Sodium channels then open in this adjacent membrane, and the depolarization spreads further down the membrane (T4). Meanwhile, delayed rectifyer potassium current flows in the original membrane patch, causing the falling phase of the AP. T3 is not shown but can be imagined by interpolation.
Note that in T4, depolarization spreads in both directions down the membrane (i.e. also toward the place where the AP originated. A second action potential is not fired in that membrane because it is refractory, thus allowing for one-way AP conduction. Diagram drawn by me in Corel Draw! |
| Date | 12 July 2005 (original upload date) |
| Source | Transferred from en.wikipedia to Commons by JohnnyMrNinja using CommonsHelper. |
| Author | The original uploader was Synaptidude at English Wikipedia. |
 | This image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}. |  |
Licensing[edit]
|
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 only as published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. Subject to disclaimers. | 1.2 only |
Original upload log[edit]
The original description page was here. All following user names refer to en.wikipedia.
- 2005-07-12 23:03 Synaptidude 1225×961× (280028 bytes) A diagram in three parts showing how an action potential propagates down a membrane, using the electrical membrane model as a guide. A local depolarization opens local sodium channels. Sodium current causes membrane depolarization (T1) which spreads to ad
- 2005-07-12 23:00 Synaptidude 1225×961× (280147 bytes) A diagram in three parts showing how an action potential propagates down a membrane, using the electrical membrane model as a guide. A local depolarization opens local sodium channels. Sodium current causes membrane depolarization (T1) which spreads to ad
- 2005-07-06 16:53 Synaptidude 1225×961× (277303 bytes) A diagram in three parts showing how an action potential propagates down a membrane, using the electrical membrane model as a guide. A local depolarization opens local sodium channels. Sodium current causes membrane depolarization (T1) which spreads to ad
- 2005-07-06 16:47 Synaptidude 1225×961× (283434 bytes) A diagram in three parts showing how an action potential propagates down a membrane, using the electrical membrane model as a guide. A local depolarization opens local sodium channels. Sodium current causes membrane depolarization (T1) which spreads to
- 2005-07-06 16:45 Synaptidude 2401×2485× (376122 bytes) A diagram in three parts showing how an action potential propagates down a membrane, using the electrical membrane model as a guide. A local depolarization opens local sodium channels. Sodium current causes membrane depolarization (T1) which spreads to
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:51, 24 February 2009 | | 1,225 × 961 (273 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|A diagram in three parts showing how an action potential propagates down a membrane, using the electric |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on vi.wikipedia.org
- Usage on zh.wikipedia.org
