Triiodothyronine Collection

Thyroid anatomy, artwork C013 / 4675
Thyroid anatomy. Computer artwork of the thyroid glands (pink) of the neck, shown in relation to the bodys bones and throat structures (white)

Close-up view of thyroid gland

Illustration showing thyroid gland formation and descent from foramen cecum (tongue)
Medicine: Human anatomy, embryology, thyroid gland formation and descent from the foramen cecum (tongue). Drawing

Thyroid anatomy, artwork C013 / 4674
Thyroid anatomy. Computer artwork of the thyroid glands (pink) of the neck, shown in relation to the bodys bones and throat structures (white)

Thyroid gland follicle, TEM
Thyroid gland follicle. Coloured transmission electron micrograph (TEM) of a follicle from the thyroid gland. The follicle consists of a layer of epithelial cells (pink)

Thyroiditis (Hashimotos disease). Light micrograph of a section through a thyroid gland with the autoimmune disorder Hashimotos disease

Triiodothyronine hormone molecule. Computer model showing the structure of the hormone triiodothyronine (T3). Atoms are colour-coded (carbon: dark grey, hydrogen: light grey, oxygen: red)

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Triiodothyronine, also known as T3, is a crucial hormone produced by the thyroid gland that plays a vital role in regulating metabolism and energy levels in the body. It helps control heart rate, body temperature, and even mood. Without enough T3, individuals may experience symptoms such as fatigue, weight gain, and depression. On the other hand, too much T3 can lead to hyperthyroidism and its associated complications. Monitoring triiodothyronine levels through blood tests is essential for diagnosing thyroid disorders and ensuring proper treatment. Overall, this hormone serves as a powerful regulator of many bodily functions and highlights the intricate balance required for optimal health.