Ca2lagring
Ca2lagring refers to the process of storing calcium ions (Ca²⁺) in biological systems, particularly within cells and tissues, where they play critical roles in various physiological functions. Calcium is an essential mineral that acts as a secondary messenger in signal transduction pathways, regulating processes such as muscle contraction, nerve impulse transmission, enzyme activity, and cellular metabolism. The controlled storage and release of calcium are vital for maintaining cellular homeostasis and preventing dysfunction.
In eukaryotic cells, calcium is primarily stored in the endoplasmic or sarcoplasmic reticulum (ER/SR), specialized organelles
Calcium release is tightly regulated by intracellular messengers like inositol trisphosphate (IP₃) and ryanodine receptors (RyRs),
In non-cellular contexts, calcium can also be stored in bone tissue as hydroxyapatite crystals, where it serves