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14 cze 2023 · The thyroid gland is a butterfly shaped, vascular, red-brown endocrine gland situated in the midline of the anterior neck. Under normal circumstances, it extends from the level of the 5th cervical vertebra ( C5 ) to the first thoracic vertebra ( T1 ).
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Describe the location and anatomy of the thyroid gland; Discuss the synthesis of triiodothyronine and thyroxine; Explain the role of thyroid hormones in the regulation of basal metabolism; Identify the hormone produced by the parafollicular cells of the thyroid
Parenchyma - secretory follicles constitute the functional units of the gland. Thyroid Follicles - spherical follicles of varying size (50 to 500 µm) in which thyroid hormones are stored. Colloid - lumen of each follicle is filled with the gel-like mass called colloid.
6 lis 2024 · Thyroid. The thyroid is a butterfly-shaped gland located in the neck, responsible for producing hormones that regulate metabolism, growth, and development. It is part of the endocrine system and plays a critical role in maintaining the body’s metabolic rate, temperature regulation, and energy production. The gland consists of two lobes, the ...
Learning Objectives. By the end of this section, you will be able to: Describe the location and anatomy of the thyroid gland. Discuss the synthesis of triiodothyronine and thyroxine. Explain the role of thyroid hormones in the regulation of basal metabolism. Identify the hormone produced by the parafollicular cells of the thyroid.
30 paź 2023 · The thyroid gland is a bilobular endocrine gland that is found in the neck, anterior and inferior to the larynx. Grossly, the gland appears brownish-red and the left and right lobes are connected by an isthmus. The main purpose of this organ is to produce, store and secrete the iodine-based hormones triiodothyronine (T3) and thyroxine (T4).
2 lis 2024 · The lobes of the thyroid gland are wrapped around the cricoid cartilage and superior rings of the trachea. The gland is located within the visceral compartment of the neck (along with the trachea, oesophagus and pharynx). This compartment is bound by the pretracheal fascia.
