Parathyroid+gland

=Parathyroid gland=
 * The **parathyroid glands** are small endocrine glands in the neck that produce parathyroid hormone.
 * Humans usually have four parathyroid glands, which are usually located on the rear surface of the thyroid gland, or, in rare cases, within the thyroid gland itself or in the chest. Parathyroid glands control the amount of calcium in the blood and within the bones.
 * The parathyroid glands are four or more small glands, about the size of a grain of rice, located on the posterior surface (back side) of the thyroid gland.
 * The parathyroid glands are named for their proximity to the thyroid but serve a completely different role than the thyroid gland.

[|Gland]

[|Parathyroid gland] [|Parathyroid Gland picture]