Discuss how parathyroid hormone (PTH) maintains normal blood calcium ion concentration
What will be an ideal response?
Hypocalcemia occurs when the calcium ion level in the blood decreases below normal. Parathyroid hormone (PTH) is released by the chief cells of the parathyroid glands to increase blood calcium ion concentration. The main effects of PTH are to 1 ) increase release of calcium ions from bone by stimulating osteoclasts, 2 ) increase absorption of dietary calcium ions by the small intestine, and 3 ) increase reabsorption of calcium ions from the fluid in the kidneys.
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