Calcium in biology

Calcium plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions into the bloodstream under controlled conditions. Circulating calcium is either in the free, ionized form or bound to blood proteins such as albumin. The hormone secreted by the parathyroid gland, parathyroid hormone, regulates the resorption of Ca2+ from bone.

Related Topics:
Calcium - Anatomy - Physiology - Biochemistry - Organism - Cell - Signal transduction - Skeleton - Mineral storage - Ion

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