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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).
- Hyperthyroidism
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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.
Histology Revolution: from inefficient, two-dimensional, and low-resolution techniques to high-throughput, three-dimensional and high-resolution techniques
1 mar 2009 · 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.
Slide Descriptions. I. PITUITARY GLAND. These slides show mostly pars distalis, but also have a small area of neurohypophysis (either pars nervosa or infundibular stalk) on one side (see slide orientation diagrams) and are stained in alternate sets with H&E or with Masson trichrome.
The thyroid gland is a butterfly-shaped organ in front of the trachea (Figure 2). It is derived from a downgrowth of oral epithelium from the base of tongue, forming the thyroglossal duct. In the oral cavity, all that remains of the duct after birth is a small structure called the foramen cecum.
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
