Answer:
The organ is responsible for secreting the parathyroid hormone to get the body back to homeostasis is parathyroid glands .
Explanation:
These parathyroid glands that are  responsible for secreting the parathyroid hormones are smaller glands that are situated in the front of the neck. This parathyroid hormone is vital for maintaining and controlling the levels of calcium in the our body. This parathyroid glands some times secretes too high or too low hormone leading to hyperthyroidism and hypothyroidism. The hyperthyroidism is a state when large amount of hormone is secreted than required. Conversely hypothyroidism, occurs when the less amount of hormone is released.
