Calcium‐activated BKCa channels govern dynamic membrane depolarizations of horizontal cells in rodent retina

Key points Large conductance, Ca2+‐activated K+ (BKCa) channels play important roles in mammalian retinal neurons, including photoreceptors, bipolar cells, amacrine cells and ganglion cells, but they have not been identified in horizontal cells. BKCa channel blockers paxilline and iberiotoxin, as we...

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