Talk:Flame cell

Untitled

"Tube cell" redirects here. I think there should be a "Tube cell" disambiguation page, since the tube cell I was looking for has to do with pollen in flowering plants. Gigeoxy (talk) 23:23, 31 January 2009 (UTC)

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 2 April 2019 and 6 June 2019. Further details are available on the course page. Student editor(s): Emiko18.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:30, 16 January 2022 (UTC)

Needs disambiguation

I found this page trying to look up the "flame cell" seen in multiple myeloma. My source for this is a lecture by an oncologist on plasma cell dyscrasias.

- If there are multiple things by the name "flame cell" then a disambiguation page needs to be made

I'm not sure how to do that, however. Can anyone offer some advice? Tmbirkhead (talk) 03:32, 26 October 2016 (UTC)

Some of the informations are wrong or incomplete

Some of the informations are wrong or incomplete. Maybe because a page for protonephridia and their function is missing.

Protonephridia are excretory organs, that occur in a wide range of bilaterian taxa, mainly Lophotrochozoa. They are not restricted to freshwater invertebrates but occur in most marine invertebrate taxa. Protonephridia mainly occur in small animals or in larvae that have no secondary body cavity (Coelom). It is assumed that they are not efficient enough to function in larger invertebrates with such body cavities (see Ruppert and Smith 1988).

Currently they are known from: Annelida, Mollusca, Phoronida, Entoprocta, Plathelmintes, Kinhoryncha, Nemertini, Gnathostomulida, Gastrotricha, Rotatoria, Acanthocephala, Priapulida. They are not found in Nematodes (see e. g. Bartolomaeus and Ax 1992). Flame cells are also found in most of these taxa.

Protonephridia are tubular ducts, that end blindly in the mesenchym or primary body cavity of the animal. At their inner (terminal) end they posses a filtration structure by which body fluid is filtrated into the lumen of the tubule. The cells that bear the filtration structure are called terminal cells. The filtration structure is typically formed by slits in the cytoplasm of the terminal cell. The flow of body fluid into the nephridium is driven by one or more cilia that beat in the lumen of the terminal cell. A flame cell is a terminal cell in which several cilia project into the lumen from a close origin and thus appear to form a flame. Terminal cells with only one cilium are often called Solenocytes. The ultafiltrate leave the nephridium via one or more duct cells (the word tube cell is not used) and a nephropore cell that forms the external opening of the nephridium. The duct cells modify the ultrafiltrate by secretion of salts and reabsorbtion of usefull metabolites. The absorbtion is not performed by microvilli but by membrane pits. There can be numerous microvilli, but they are not neccessarily involved in absorbtion.

Bartolomaeus and Ax 1992: Protonephridia and Metanephridia - their relation within the Bilateria. Zeitschrift für zoologische Systematik und Evolutionsforschung. 30

Ruppert and Smith 1988: The functional organisation of filtration nephridia. Biological Reviews. 63

131.220.138.113 (talk) 18:27, 7 April 2010 (UTC)

most of the information in this page is wrong

is there anybody maintaining this page? be warned! most of the current information on the flame cell page is wrong! Take a look into the cited book! 160.45.62.86 (talk) —Preceding undated comment added 09:04, 16 May 2010 (UTC).

I've cite more specific pages of the book. I've also read these pages again. Please explan why you think "most of the current information on the flame cell page is wrong". --Philcha (talk) 13:37, 16 May 2010 (UTC)