The thyroid is a 15-20 g gland located in the anterior neck whose role is to primarily make thyroxine (T4), as well as small amounts of triiodothyronine (T3). The majority of T3 is formed through extra-thyroidal conversion of T4. Thyroid hormone production is controlled through negative feedback regulation through the release of thyroid-stimulating hormones (TSH) by the pituitary gland which is regulated by thyrotropin-releasing hormone (TRH) from the hypothalamus .
|Original language||English (US)|
|Title of host publication||Family Medicine|
|Subtitle of host publication||Principles and Practice: Eighth Edition|
|Publisher||Springer International Publishing|
|Number of pages||19|
|State||Published - Jan 1 2022|
ASJC Scopus subject areas