Zoology - Chemical Coordination and Integration Question with Solution | TestHub
Read the following statements about the parathyroid gland and identify the true and false ones. Select the correct option after referring to the given table.
I. Human beings have a pair of parathyroid glands, situated in each lobe of the thyroid gland.
II. The secretion of PTH is regulated by the levels of circulating calcium ions.
III. PTH is a hypocalcemic hormone.
IV. PTH plays a major role in maintaining calcium balance in the body along with TCT.
Options:
Answer:
Solution:
I. Human beings have four parathyroid glands, two pairs each situated in each lobe of the thyroid gland.
III. PTH acts on bones and stimulates the process of bone resorption and also stimulates the absorption of calcium from the renal tubules and digested food. Hence, it is a 'hypercalcemic' hormone.
