File:AP propagation membrane model view.jpg
本预览的尺寸：764 × 599像素。 其他分辨率：306 × 240像素 | 612 × 480像素 | 979 × 768像素 | 1,225 × 961像素。
原始文件 （1,225 × 961像素，文件大小：273 KB，MIME类型：image/jpeg）
摘要
| 描述 |
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! |
| 日期 | 2005年7月12日 (原始上传日期) |
| 来源 | 本檔案是由JohnnyMrNinja使用CommonsHelper，從en.wikipedia轉移到維基共享資源。 |
| 作者 | 原上传者为英语维基百科的Synaptidude |
 | 这个file中的所有图片名上传在JPEG格式，即使它包含非照片数据。该信息可以以PNG或SVG格式更有效或更准确地存储。如果可能，请上传此图像的PNG或SVG版本，没有压缩失真，源自非JPEG源（或去除现存的失真）。完成后，请使用{{Superseded|NewImage.ext}}标记JPEG版本并删除此标记。此标签不应应用于照片或扫描件。如需更多信息，请参阅{{BadJPEG}}。 |  |
许可协议
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原始上传日志
原始描述頁面位於這裡。下列使用者名稱均來自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
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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| 当前 | 2009年2月24日 (二) 04:51 | | 1,225 × 961（273 KB） | File Upload Bot (Magnus Manske) | {{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 |
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