Dark current is an influx of Na+ into the photoreceptor when Na+/Ca2+ channels are kept open by cGMP.
Le courant noir est un afflux de Na+ dans le photorécepteur lorsque les canaux Na+/Ca2+ restent ouverts grâce au cGMP.
| Front | What is dark current? |
|---|---|
| Back | When an influx of Na+ into photoreceptor caused by Na+/Ca2+ channels in the photoreceptor plasma membrane are kept open by the presence of cGMP molecules |
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