Large Conductance Calcium-Activated Potassium Channels

Large conductance calcium-activated potassium channels (also called BK channels) are specialized proteins in cell membranes that help regulate cell activity. They open in response to high levels of calcium and electrical signals, allowing potassium ions to flow out of the cell. This movement helps control things like muscle contractions, nerve signals, and blood vessel relaxation. Essentially, BK channels act as a feedback mechanism, helping cells respond quickly to changes in calcium levels and electrical activity, maintaining proper function and stability within the body.