What does parafollicular cell mean?
Definitions for parafollicular cell
parafol·lic·u·lar cell
This dictionary definitions page includes all the possible meanings, example usage and translations of the word parafollicular cell.
Wikidata
Parafollicular cell
Parafollicular cells are neuroendocrine cells in the thyroid with primary function to secrete calcitonin. They are located adjacent to the thyroid follicles and reside in the connective tissue. These cells are large and have a pale stain compared with the follicular cells or colloid. In teleost and avian species these cells occupy a structure outside of the thyroid gland named the ultimobranchial body. Parafollicular cells themselves are derived from neural crest cells. Embryologically, they associate with the ultimobranchial body, which itself is a ventral derivative of the fourth pharyngeal pouch. In a series of experiments, Nicole LeDouarin transplanted neural crest cells from quail, with unique and easily identified nuclei, into non-quail neural crest. She subsequently demonstrated the presence of cells with quail nuclei populating the ultimobranchial body and concluded that C cells migrate during embryologic development from the neural crest. They are not numerous in the thyroid and are typically situated basally in the epithelium, without direct contact with the follicular lumen. They are always situated within the basement membrane, which surrounds the entire follicle.
Numerology
Chaldean Numerology
The numerical value of parafollicular cell in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of parafollicular cell in Pythagorean Numerology is: 6
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"parafollicular cell." Definitions.net. STANDS4 LLC, 2024. Web. 1 May 2024. <https://www.definitions.net/definition/parafollicular+cell>.
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