ion current

Ion current refers to the flow of charged particles (ions) through a medium, such as biological tissues or electrical circuits. When ions move across cell membranes or conductors, they create an electrical current, similar to how electrons flow in a wire. This ion movement is essential for processes like nerve signals and muscle contractions. The magnitude of ion current depends on the number of ions moving and the speed of their flow, following principles of electromagnetism. In essence, ion current is the biological or electrical equivalent of current in a wire, driven by differences in charge or electrical potential.