Parathyroid Anatomy

A rear view of the thyroid showing the parathyroids lying on the back of the thyroid close to the recurrent laryngeal nervethe parathyroid glands are tan coloured bean shaped structures about the size of a grain of rice weighing around 30 40 mg each. The parathyroid glands are usually in close approximation with but function independently of the thyroid gland.

Anatomy Of The Thyroid And Parathyroid Glands

The lymphatic vessels of the parathyroid glands drain.

Parathyroid anatomy. Parathyroid glands are small glands of the endocrine system that control the amount of calcium in our blood and bones. There are normally two pairs of parathyroid glands inferior and superior. Lymphatic vessels drain into the pretracheal.

Studies have shown that in approximately 10 of patients the inferior thyroid artery is absent most commonly on the left side. These glands secrete parathyroid hormone that regulates the metabolism of calcium and phosphorus. The parathyroid glands produce parathyroid hormone pth which is one of the two major hormones modulating calcium and phosphate homeostasis.

Parathyroid surgery is different from all other forms of human surgery because of the fact that there are four parathyroid glands. Oxyphil cells which. The other hormone is calcitriol 125 dihydroxyvitamin d.

Chief cells which synthesize and release parathyroid hormone. The parathyroid glands are located on the posterior aspect. Two unique types of cells are present in the parathyroid gland.

Parathyroid glands gross anatomy. One of two small paired endocrine glands superior and inferior usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland. When you understand this you will understand why parathyroid anatomy is some of the most variable anatomy in the human body and why it is very important to get a very experienced parathyroid surgeon to perform your parathyroid surgery read more.

This is why you want the most experienced parathyroid surgeon you can find. What is normal parathyroid gland function. There are 4 parathyroid glands located behind the thyroid gland in the neck that play a very critical role in many body functions.

Technically speaking the four parathyroids arise from the third and forth branchial pouches. Parathyroid anatomy is the most variable anatomy in the body. The parathyroid glands anatomical location.

Sympathetic vasoconstrictor fibers from the middle and inferior cervical ganglia enter. The posterior aspect of the thyroid gland is supplied by. Parathyroid vascular anatomy the inferior parathyroid gland is supplied by the inferior thyroid artery from the thyrocervical trunk.

The parathyroid glands have an. These cells are small and appear dark when loaded with parathyroid hormone and clear when the hormone has been secreted or in their resting state.

Thyroid Parathyroid Adrenal Endocrine Surgery Anatomy Of