GENERAL HISTOLOGY

Detailed explanation-1: -Parathyroid hormone is secreted by the parathyroid glands and is the most important regulator of blood calcium levels.

Detailed explanation-2: -Parathyroid hormone (PTH) is a hormone your parathyroid glands release to control calcium levels in your blood. It also controls phosphorus and vitamin D levels. If your body has too much or too little parathyroid hormone, it can cause symptoms related to abnormal blood calcium levels.

Detailed explanation-3: -The parathyroid glands lie behind the thyroid. They produce parathyroid hormone, which plays a role in regulating the body’s blood level of calcium and phosphorus.

Detailed explanation-4: -Calcitonin is a hormone that the C-cells in the thyroid gland produce and release. It opposes the action of the parathyroid hormone, helping to regulate the blood’s calcium and phosphate levels. Calcitonin works to control calcium and potassium levels.