THYROID Meaning and
Definition
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The thyroid refers to a small, butterfly-shaped gland situated in the lower front part of the neck, just below the Adam's apple. It is a crucial component of the endocrine system, responsible for the production and regulation of several vital hormones that play a significant role in numerous bodily functions. The primary hormone produced by the thyroid gland is thyroxine, commonly known as T4, which plays a central role in regulating metabolism and energy levels throughout the body. In addition to T4, the thyroid also produces triiodothyronine (T3), which is derived from T4 and serves similar functions to its precursor.
The thyroid gland is controlled by the pituitary gland, which is a small structure located at the base of the brain. The pituitary gland produces thyroid-stimulating hormone (TSH), which instructs the thyroid to produce and release thyroid hormones into the bloodstream. Dysfunction or abnormality of the thyroid gland can result in a number of disorders, including hyperthyroidism (overproduction of thyroid hormones) and hypothyroidism (underproduction of thyroid hormones). These conditions can lead to various symptoms such as weight fluctuations, fatigue, mood changes, and alterations in body temperature.
Due to its crucial function in maintaining overall health and metabolism, the thyroid gland is essential for the proper functioning of various bodily systems. Its intricate interaction with other components of the endocrine system enables the regulation of metabolism, growth, and development, making it a pivotal organ for overall well-being.
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Resembling a shield, scutiform; noting a gland (glandula thyreoidea) and a cartilage of the larynx (cartilago thyreoidea). Also written, more correctly, but less commonly, thyreoid.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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In anat., applied to one of the cartilages of the larynx from its shield-like form; aslo applied to a glandular body lying in front of this cartilage, or the atreries supplying the part.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Etymology of THYROID
The word "thyroid" is derived from the Greek word "thyreoeidēs", which means "shield-shaped". It comes from the combination of "thyreos" meaning "a large shield" and "oeidēs" meaning "resembling" or "shaped like". This is in reference to the shape of the gland, as it is located in the neck and has a resemblance to a shield.
Similar spelling words for THYROID
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