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follicle
(redirected from thyroid follicles)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.01 sec.
follicle [′fäl·ə·kəl]
(biology)
A deep, narrow sheath or a small cavity.
(botany)
A type of dehiscent fruit composed of one carpel opening along a single suture.


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At these high intakes, uptake of iodine into the thyroid gland appears to be inhibited, resulting in reduced synthesis of thyroxine and elevated secretion of TSH, which stimulates the thyroid follicles to enlarge and multiply, producing a goitre.
Serial sectioning of thyroid follicles showed thyroid hyperplasia with increased follicular epithelial cell height and reduced colloid in all groups of fish that had been exposed to perchlorate for 28 days, compared with control fish.
2) with only a few residual thyroid follicles and with very scanty lymphoid conglomerates of follicular appearance.
 
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