triiodothyronine

Physiology

(noun)

A thyroid hormone also known as T3 that plays a key role in many physiological processes and is the much more active than T4.

Related Terms

Biology

(noun)

the most powerful thyroid hormone, affecting almost every process in the body, including body temperature, growth, and heart rate

Related Terms

Examples of triiodothyronine in the following topics:

  • Control of Thyroid Hormone Release

    • The production of thyroxine and triiodothyronine is regulated by thyroid-stimulating hormone (TSH) that is released from the anterior pituitary.
    • The production of thyroxine (T4) and triiodothyronine (T3) is primarily regulated by thyroid-stimulating hormone (TSH) that is released from the anterior pituitary gland.

  • Action of Thyroid Hormones

    • The primary function of the thyroid is to produce the hormones triiodothyronine (T3), thyroxine (T4), and calcitonin.
    • Triiodothyronine (T3) and thyroxine (T4) are enzymes produced by the thyroid gland.

  • Formation, Storage, and Release of Thyroid Hormones

    • The thyroid hormones thyroxine (T4) and triiodothyronine (T3) are produced from thyroid follicular cells within the thyroid gland, a process regulated by the thyroid-stimulating hormone secreted by the anterior pituitary gland.

  • Thyroid Gland

    • The thyroid gland produces the hormones T3 (triiodothyronine) and T4 (thyroxine).

  • Overview of the Thyroid Gland

    • It participates in these processes by producing thyroid hormones, the principal ones being triiodothyronine (T3) and thyroxine (sometimes referred to as tetraiodothyronine (T4)).

  • Pituitary Gland Disorders

    • Thyroid-stimulating hormone (TSH) deficiency leads to hypothyroidism (lack of production of thyroxine (T4) and triiodothyronine (T3) in the thyroid).

  • Hormonal Regulation of Metabolism

    • The basal metabolic rate, which is the amount of calories required by the body at rest, is determined by two hormones produced by the thyroid gland: thyroxine, also known as tetraiodothyronine or T4, and triiodothyronine, also known as T3.

  • Development of the Endocrine System

    • It is involved in the production of the hormones T3 (triiodothyronine) and T4 (thyroxine).

  • Overview of Endocrine Glands

    • It is involved in the production of the hormones T3 (triiodothyronine) and T4 (thyroxine).