GENERAL HISTOLOGY

CONNECTIVE TISSUE GLAND

ENDOCRINE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The parathyroid hormone (PTH) regulates ____
A
calcium and iodine
B
iodine and phosphate
C
calcium and phosphate
D
salt
Explanation: 

Detailed explanation-1: -Parathyroid hormone (PTH) is a hormone your parathyroid glands release to control calcium levels in your blood. It also controls phosphorus and vitamin D levels. If your body has too much or too little parathyroid hormone, it can cause symptoms related to abnormal blood calcium levels.

Detailed explanation-2: -How is parathyroid hormone controlled? Parathyroid hormone is mainly controlled by the negative feedback of calcium levels in the blood to the parathyroid glands. Low calcium levels in the blood stimulate parathyroid hormone secretion, whereas high calcium levels in the blood prevent the release of parathyroid hormone.

Detailed explanation-3: -as well as the hormones (PTH, vitamin D, FGF23, calcitonin) that regulate calcium and phosphate.

Detailed explanation-4: -In the bone, PTH stimulates the release of calcium into the extracellular fluid by increasing osteoclastic bone resorption. In addition to its effects on calcium, PTH is one of the best characterized hormonal regulators of plasma phosphate concentration.

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