Question

A gland that secrets a hormone that regulates the body's use of calcium

Answer 1

parathyroid gland

Step-by-step explanation:

The parathyroid gland secretes parathyroid hormone (PTH) which is responsible for monitoring blood calcium levels by mobilizing calcium reserves in the bone, increasing intestinal absorption and increasing renal excretion. Another hormone involved in regulated Ca blood levels is calcitonin, secreted by the thyroid gland. It lowers Ca blood levels by increasing its deposition in the bone.

Answer 2

Parathyroid gland secrets a hormone called parathyroid hormone or parathormone (PTH) which regulates calcium usage in our body.

Hope it helps!