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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).
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1 mar 2009 · Physiology. Purpose of thyroid gland is to produce T4 and T3, which regulate metabolism, increase protein synthesis and increase oxygen consumption in all cells in body; T4 and T3 are also important for growth and development, and maturation of peripheral and central nervous system.
Thyroid. The thyroid gland is a bilobed endocrine gland. It is unique in that it stores its hormones bound to an extracellular pool of protein (colloid). Stroma Capsule - enclosed by a thin layer of connective tissue. Trabeculae - connective tissue extends inwards from the capsule to partially outline irregular lobes and lobules.
5 gru 2022 · The thyroid follicles are the structural and functional units of a thyroid gland. These are spherical, and the wall is made up of a large number of cuboidal cells, the follicular cells. These follicular cells are the derivates of the endoderm and secrete thyroid hormone.
19 lip 2016 · Paraffin-embedded tissue sections (4-μm-thick) were stained with hematoxylin and eosin (H&E) for histological analysis, which included follicle size and shape, follicular cell height, and characteristics of the cytoplasm and intrafollicular colloid.
1 sty 2014 · Abstract. The thyroid gland weighs 15–25 g and is composed of two lobes joined by the isthmus, with approximately 40 % of people having a pyramidal lobe. The thyroid is composed of lobules, each of which is composed of 20–40 follicles. Each follicle is surrounded by a basement membrane and lined by follicular cells.
14 cze 2023 · Ectopia, adult thyroid disease. The goal of this article is to discuss the embryology, anatomy, brief histology, and neurovascular supply of the thyroid gland. Further details regarding thyroid hormone synthesis and the key functions of the gland will also be addressed.
