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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.
- Hyperthyroidism
Thyroid gland (cross-sectional view) In overt primary...
- Kidneys
Kidneys and ureters are organs of the urinary system.They...
- Hashimoto’s Thyroiditis
Lewis E. Braverman, David Cooper: Werner & Ingbar's The...
- Quiz Questions and Diagrams
Endocrine system diagram. First things first - you’ll need...
- Thyroid Gland
Although chiefly occupied by thymocytes and parafollicular...
- Musculoskeletal
Main muscles of the muscular system. Let’s move to the third...
- Hyperthyroidism
Secrete thyroid hormones when active. Capillaries - a rich network surrounds each follicle. Parafollicular Cells (#1 and #2)- small numbers of larger cells located at the periphery of follicles that secrete calcitonin. They stain poorly with H&E making identification difficult.
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
5 gru 2022 · Monitoring the upregulation or downregulation of specific cell adhesion molecules (E-cadherin, fibronectin), cell cycle regulatory proteins (CD44, p27Kip1), and oncogenes (BRAF) through cytochemical staining are helpful techniques to test thyroid cancers.
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.
The parenchyma of the gland is made up of two identifiable cell types: the predominant chief (or principal) cells (source of parathyroid hormone) and occasional oxyphil cells. Observe the arrangement of chief cells in the parathyroid as seen on slides 217, 220, and 221.
Be able to recognize the thyroid gland at the light and EM level and be able to explain how thyroid follicular cells are involved in the production of thyroglobulin, its storage, and its subsequent breakdown to thyroid hormones.
