Question

Hypercalcemic hormone is
a. Thyroxine
b. Tri- iodo- thyroxine
c. Parathormone
d. Thyrocalcitonin

Answer 1

Blood calcium level is increased by hypercalcemic hormone that is present in the parathormone. Parathyroid hormones (PTH) are secreted by peptide hormone into the parathyroid gland. The presence of $Ca^{2+}$ ions that present in the blood help to regulate the parathormone and play vital roles in maintaining the calcium level in the body.

Complete answer:
Hormones are chemical substances that’s produced inside the body and help to regulate and control the activities of certain organs and cells. Special glands are secreted many hormones, and hormones act as a chemical messenger and also part of the endocrine gland.

Four parathyroid glands are present in the small gland in the neck, located behind the thyroid known as parathyroid gland. Parathyroid hormones secreted by the chief cells from the parathyroid gland in which polypeptides contain 84 amino acids act to increase the concentration of the calcium in the blood. The parathyroid hormone plays an important role in bone remodeling.

It helps to balance the calcium level in the blood but it does this through its action on the intestine and the kidney. Secretory granules with the parathyroid gland which has serum PTH concentration are dependent upon the release of PTH and synthesis of the new PTH with the help of vitamin D, phosphorus and $Ca^{2+}$.

Hence, the correct answer is option (C).

Note: Resorption/ demineralization/ dissolution is process release during when PTH acts on bones and other skeleton structure and mobilizes the required amount of calcium into the blood. And parathromb helps to increase the reabsorption of the calcium level with the help of renal tubules and absorbs the calcium from the digested food.