| Front | How is an action potential propagated along an unmyelinated axon? |
|---|---|
| Back | - stimulus leads to influx of Na+ - depolarisation - depolarising current flows passively down axon - voltage gated Na+ channels further down membrane open - influx of Na+ leads to depolarisation in this region - in the old region, voltage gated Na+ channels close and voltage gated K+ channels open - membrane repolarises and enters refractory period |
Tags: nerves
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Action conduction potential propagated myelinated axon jump adjacent
Previous card: Stimulus size impulses neurones detected larger generated time
Up to card list: AQA A Level Biology