calcium signaling networks

Calcium signaling networks are essential communication systems within and between cells, using calcium ions to transmit information and trigger various cellular activities. When a cell receives a signal—like a hormone or a nerve impulse—calcium ions are released from internal stores or enter from outside the cell. These ions then act like messengers, activating proteins that regulate processes such as muscle contraction, hormone secretion, and nerve signaling. By controlling calcium levels, cells can respond to changes in their environment, making calcium signaling crucial for many physiological functions in the body.