Zoology - Chemical Coordination and Integration Question with Solution | TestHub

The parathyroid glands produce parathyroid hormone. This hormone helps maintain an appropriate balance of calcium in the bloodstream.

Functions of Parathyroid hormone (PTH):

$1.$PTH increases the process of bone resorption or dissolution (demineralisation) of bone.

$2.$PTH stimulates the reabsorption of$\mathrm{C}{\mathrm{a}}^{2+}$by the renal tubules.

$3.$PTH increases absorption of$\mathrm{C}{\mathrm{a}}^{2+}$from the digested food.

$4.$All above actions of PTH increases the blood$\mathrm{C}{\mathrm{a}}^{2+}$levels, thus PTH is a hypercalcemic hormone. PTH and TCT plays a significant role in maintaining the calcium balance in the body.