Parathyroid
Parathyroid glands are round bodies, about one-quarter to four-fifths inches in height, located in the neck near the thyroid gland. Usually there are a pair associated with each thyroid gland. Parathyroids are endocrine glands which secrete parathormone.
Parathormone hormone is involved in increasing blood calcium levels and decreasing blood phosphate levels. The hormone can cause the breakdown of bones, to provide calcium; severe breakdown of the bone can lead to osteoporosis.
References
Dorland's Illustrated Medical Dictionary, 27th edition. W.B. Saunder Company, Philadelphia. 1988.
Gray, H. 1977. Gray's Anatomy. Crown Publishers, Inc, New York. 1257 pp.
Hadley, M.E. 1984. Endocrinology Prentice-Hall, Inc, New Jersey. 547 pp.