collar cell


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collar cell

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

collar cell

n
(Zoology) another name for choanocyte
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.collar cell - any of the flagellated cells in sponges having a collar of cytoplasm around the flagellumcollar cell - any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body
flagellated cell - any cell or one-celled organism equipped with a flagellum
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References in periodicals archive ?
Winyard and Feather (22) found BCL2 immunoreactivity at mesenchymal condensates of fetal kidney, negative staining at ureteric bud braches, and ectopic staining at dysplastic primitive ducts, but negative staining at surrounding collar cells. In comparison with our cases, the immunostaining of BCL2, partially consistent with the findings of Winyard and Feather, (22) exhibits cytoplasmic staining in the epithelial cells of primitive ducts and immature or mature renal tubules, in which the intensity and proportion of BCL2-positive cells are variable in these conditions.
Cilia were not found in epidermal or collar cells. The cilia of the infundibular cells have two nearly parallel striated rooflets and appear to have reduced axonemes that do no t project above the level of the microvilli (Fig.