Filiform papillae do not have taste buds.
نویسندگان
چکیده
1 Professor Assistente (Palestrante). 2 Mestrado (Assistente). 3 Professor (Palestrante). Endereço para correspondência: Mehmet Fatih Sönmez. Department of Histology and Embryology, Faculty of Medicine, Erciyes University, 38039 Kayseri, Turkey. Tel: (+90) 352 4374901 x 23356. Fax: (+90) 352 4375285 Este artigo foi submetido no SGP (Sistema de Gestão de Publicações) da BJORL em 17 de dezembro de 2007. cod. 5631. Artigo aceito em 7 de março de 2008. LETTER TO THE EDITOR Braz J Otorhinolaryngol. 2012;78(4):7.
منابع مشابه
Neural control of ectopic filiform spines in adult tongue.
The tongue surface directly above a fungiform taste bud is flat, thinly keratinized, and free of filiform spines. We examined fungiform papillae in serial sections of rat and gerbil tongues after unilateral transection of the chorda-lingual nerve had caused many fungiform taste buds to degenerate. Such empty fungiform papillae often formed a solitary keratinized outgrowth that closely resembled...
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The time course of structural changes in fungiform papillae was analyzed in rats that received unilateral chorda tympani nerve transection at 10 days of age. Morphological differences between intact and denervated sides of the tongue were first observed at 8 days postsection, with an increase in the number of fungiform papillae that did not have a pore. In addition, the first papilla with a fil...
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Lingual papillae of wild boar and pig were studied by means of scanning electron microscopy (SEM). Vallate papillae appear with the typical circumvallate morphology. Their papillary bodies show conical or fungiform-like and spicule-like pseudopapillae in both animals. Taste pores were seen in the papillary grooves. Microplicae or pits are visible at high magnification. In pig and wild boar simi...
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The morphology of the tongue of the adult barking deer, Muntiacus muntjak, was examined by light and scanning electron microscopy. The result showed that the tongue of the barking deer was elongated with a rounded apex. Four types of lingual papillae were observed: filiform, fungiform, vallate and large conical papillae. The filiform papillae represented the most numerous types of lingual papil...
متن کاملEpithelial overexpression of BDNF or NT4 disrupts targeting of taste neurons that innervate the anterior tongue.
Brain-derived neurotrophic factor (BDNF) and neurotrophin-4 (NT4) are essential for the survival of geniculate ganglion neurons, which provide the sensory afferents for taste buds of the anterior tongue and palate. To determine how these target-derived growth factors regulate gustatory development, the taste system was examined in transgenic mice that overexpress BDNF (BDNF-OE) or NT4 (NT4-OE) ...
متن کاملSox2 is required for development of taste bud sensory cells.
Sox2 is expressed in basal epithelial cells of the tongue, with high levels in taste bud placodes, fungiform papillae, and mature taste cells, and low levels in filiform papillae. High Sox2 expression appears to lie downstream from canonical Wnt signaling. In hypomorphic Sox2(EGFP/LP) embryos, placodes form but no mature taste buds develop. In contrast, transgenic overexpression of Sox2 in the ...
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ورودعنوان ژورنال:
- Brazilian journal of otorhinolaryngology
دوره 78 4 شماره
صفحات -
تاریخ انتشار 2012