Question

Which of the following reasons states that parathyroid is hormone is a hypercalcemic hormone?

• A. PTH also stimulates reabsorption of Ca2+ by the renal
  tubules
• B. PTH increases Ca2+ absorption from the digested food
• C. PTH control the metabolism of carbohydrates,
  proteins and fats
• D. Both A and B

Answer 1

The correct option is D Both A and B

In humans, four parathyroid glands are present on the back side of the thyroid gland, one pair each in the two lobes of the thyroid gland. They secrete a peptide hormone called parathyroid hormone (PTH).
PTH increases Ca2+ absorption from the digested food. it also stimulates reabsorption of Ca2+ by the renal tubules.PTH acts on bones and stimulates the process of bone resorption (dissolution/demineralization).
Hence PTH is a hypercalcemic hormone, i.e., it increases the blood Ca2+ levels. Along with TCT(Thyrocalcitonin), it plays a significant role in calcium balance in the body

So, the correct option is 'Both A and B'.