You have 4 parathyroid glands. The embryonic origin of this gland is from the endoderm of the third and fourth pharyngeal pouches, and could also have ectoderm and neural crest contributions. Parathyroid cancers are very rare. If they secrete extra PTH, you have hyperparathyroidism, and your blood calcium rises.

If your parathyroid glands make too much or too little hormone, it disrupts this balance. thyroidal a. Inf. Parathyroid Glands.

You've just called her back so you can figure out what brought her into the office. THE THYROID GLAND Anatomical Structure Gross Anatomy Located in neck lobes isthmus Relations Larynx Trachea Recurrent laryngeal nerves Parathyroid glands Carotid sheath Blood supply Sup. Hypoparathyroidism is an uncommon condition in which your body produces abnormally low levels of parathyroid hormone (PTH). About 1 in 100 people (1 in 50 women over 50) will develop a parathyroid gland tumor during their lifetime, causing a disease called "hyperparathyroidism". A Parathyroid scan is for localization of hyperparathyroidism or overactive parathyroid glands. The parathyroid gland produces and secretes parathyroid hormone in response to a low blood calcium, which plays a key role in regulating the amount of calcium in the blood and within the bones. | PowerPoint PPT presentation | free to view Everyone has four parathyroid glands, usually located right around the thyroid gland at the base of the neck.

Parathyroid glands control the amount of calcium in our blood. The parathyroid gland appears in the adult as a pair of inferior and a pair of superior "bumps" on the beside the (dorsal) thyroid (hence the name, "para"). Parathyroid glands control the amount of calcium in the blood and within the bones. In many cases, a benign tumor on a parathyroid gland makes it overactive. The superior parathyroid glands are most commonly found about the middle third of the thyroid lobe, at the level of the cricothyroid junction, and near the point where the recurrent laryngeal nerve passes beneath the inferior pharyngeal constrictor to enter the larynx . A parathyroid tumor is a growth inside a parathyroid gland. They’re part of the endocrine system. Very rarely, the cause is cancer. There are four parathyroid glands, which are usually located behind the thyroid gland and, in rare cases, within the thyroid gland or in the chest.
Parathyroid glands are small endocrine glands in the neck of humans and other tetrapods.Humans usually have four parathyroid glands, located on the back of the thyroid gland in variable locations. Most parathyroid tumors are not cancer (benign). Seminar on Diseases of parathyroid gland Chairperson- Prof.Dr.M.A.Balakrishna Presenter – Dr.Nadeem pasha Historical Background: Historical Background In 1849, the curator of the London Zoological Gardens, Sir Richard Owen, provided the first accurate description of the normal parathyroid gland after autopsy examination of an Indian rhinoceros. Anatomy