What is the functional unit of the thyroid gland?

What is the functional unit of the thyroid gland?

The functional unit of the thyroid gland is the follicle, a roughly spherical group of cells arranged around a protein-rich storage material called colloid. The follicular cells are orientated with their bases near the capillary blood supply and the apices abutting the colloid.

What is the structural unit of the thyroid gland called?

[5] The thyroid follicles are the structural and functional units of a thyroid gland. These are spherical, and the wall is made up of a large number of cuboidal cells, the follicular cells. These follicular cells are the derivates of the endoderm and secrete thyroid hormone.

What is the structure of thyroid gland?

The thyroid is a butterfly-shaped gland that sits low on the front of the neck. Your thyroid lies below your Adam’s apple, along the front of the windpipe. The thyroid has two side lobes, connected by a bridge (isthmus) in the middle. When the thyroid is its normal size, you can’t feel it.

What is the gross anatomy of thyroid gland?

Gross structure The thyroid is located in the mid-line of the neck, anterior to the trachea and inferior to the larynx. The thyroid gland comprises of two lateral lobes and a central isthmus. It is surrounded by a fibrous capsule and located at the level of vertebrae C5-T1.

Where is the thyroid diagram?

The thyroid gland is located at the front of the neck just below the Adam’s apple (larynx). It is butterfly-shaped and consists of two lobes located either side of the windpipe (trachea). A normal thyroid gland is not usually outwardly visible or able to be felt if finger pressure is applied to the neck.

What level is the thyroid cartilage?

The thyroid cartilage is the largest of the cartilages of the larynx, with its superior pole sitting at the level of the C4 vertebra.

What are 2 disorders of the thyroid gland?

The two main types of thyroid disease are hypothyroidism and hyperthyroidism. Both conditions can be caused by other diseases that impact the way the thyroid gland works.