Complex sentence: BK channels, also called Maxi-K or slo1 channels, are large conductance Ca 2 + and voltage-activated K + channels, which allow K + to leave the cytoplasm under physiological conditions when activated by membrane potential and/or intracellular Ca 2 +.
Split into simpler sentences: BK channels, also called Maxi-K or slo1, are ion channels which conduct calcium (Ca 2 +) and potassium (K +) ions through cell membranes. These channels are activated (opened) by changes in by membrane potential and/or intracellular Ca 2 +.