flame cell

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flame cell

primitive, ciliated excretory cell in trematodes; the movement of the cilia on this cell within the miracidium larva within a schistosome egg indicates egg viability.

flame cell

n.
A hollow cell in the excretory system of certain invertebrates, including flatworms and rotifers, containing a tuft of rapidly beating cilia that serve to propel waste products into excretory tubules.
A plasma cell with intensely eosinophilic—flaming—cytoplasm containing glycoprotein globules; flame cells were regarded as specific for IgA myelomas, but also occur in Waldenström’s macroglobulinemia and African trypanosoma leptomeningitis near clustered neutrophils in which it is similar, but membrane-bound

flame cell

(flām sel)
Primitive, ciliated excretory cell in trematodes; the movement of the cilia on this cell within the miracidium larva within a schistosome egg indicates egg viability.
Flame cellclick for a larger image
Fig. 160 Flame cell . General structure.

flame cell

a specialized cell that contains a central cavity with several beating cilia. These create a current in the tubules to which they are connected. The tubules usually open to the exterior and flame cells control the water content of the body. The flame cell and tubule is known as a protonephridium and is found in PLATYHELMINTHS, NEMERTINES, rotifers, ANNELIDS, the larvae of molluscs and AMPHIOXUS.