The parathyroid glands are four small glands placed two on each side of the thyroid gland in the neck. The hormone secreted by the parathyroid gland is parathormone which controls the amount of calcium in blood and bone. Over-secretion of parathormone causes calcium and phosphorous depletion from the bones and the teeth, and increase in blood calcium levels. Deficiency of parathormone lowers the blood calcium and leads to the poor development of bones in young people.
Parathyroid Gland
