What is the relationship between phosphorus and the parathyroid glands?

The parathyroid glands play a crucial role in regulating phosphorus levels in the body. When blood phosphorus levels drop, the parathyroid glands release parathyroid hormone (PTH), which stimulates the release of phosphorus from bones and increases its absorption from the intestines and kidneys. This helps to raise blood phosphorus levels. Conversely, when blood phosphorus levels are high, PTH secretion decreases, reducing phosphorus absorption and promoting its excretion by the kidneys. This intricate balance helps maintain stable phosphorus levels in the bloodstream.