Intracellular calcium

Intracellular calcium refers to the calcium ions present inside cells, playing a vital role in numerous cellular processes. Calcium acts as a signaling molecule, helping cells communicate and respond to various stimuli, such as hormones or neurotransmitters. It is crucial for muscle contraction, nerve transmission, and hormone secretion. Cells tightly regulate calcium levels, using channels and pumps to maintain balance. When calcium enters the cell, it can trigger various responses, making it essential for proper cellular function and overall health. Abnormal calcium levels can lead to various diseases, highlighting its importance in biological processes.