Stretch-activated ion channels

Stretch-activated ion channels are specialized proteins embedded in cell membranes that open in response to mechanical forces, like stretching or pressure. When the cell membrane is distorted, these channels change shape, allowing specific ions (such as sodium, potassium, or calcium) to flow into or out of the cell. This ion movement helps cells detect and respond to physical stimuli, playing essential roles in processes like touch sensation, blood vessel regulation, and hearing. Essentially, they act as molecular sensors that convert mechanical signals into electrical or chemical signals within the body.