Calcium Homeostasis: Interactions of the Skeletal System and Other Organ Systems

Definition

Calcium homeostasis is the regulation of calcium levels in the bloodstream, primarily controlled by the skeletal system, kidneys, and parathyroid glands to maintain optimal physiological conditions. It involves the processes of calcium absorption, storage, and mobilization to ensure stable calcium concentrations for various bodily functions.

Related terms

Parathyroid Hormone (PTH): A hormone released by the parathyroid glands that increases blood calcium levels by stimulating bone resorption and increasing calcium reabsorption in the kidneys.

Calcitonin: A hormone produced by the thyroid gland that lowers blood calcium levels by inhibiting bone resorption and enhancing calcium excretion by the kidneys.

Bone Resorption: The process by which osteoclasts break down bone tissue, releasing minerals, including calcium, into the bloodstream