In the early 1980s, scientists observed an anomaly. Embedded within cell membranes, they identified ion channels with extraordinarily high conductance. These so-called "BK" (Big K, or Big Potassium) channels had roughly 10 times the unitary conductance (i.

Source: [Phys.org](https://phys.org/news/2026-10-current-calcium-longstanding-ion-channel.html)

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