Comparative Morphology of the Papillae Linguales and their Connective Tissue Cores in the Tongue of the Greater Japanese Shrew-mole, Urotrichus talpoides
نویسندگان
چکیده
The external morphology of the papillae linguales (papillae filiformes, papillae fungiformes and papillae vallatae) and their connective tissue cores (CTCs) of the greater Japanese shrew-mole (Urotrichus talpoides) were analysed by optical and scanning electron microscopy. Papillae filiformes were distributed over the dorsal surface of the apex linguae, and on the rostral and caudal regions of the corpus linguae but were less numerous in the mid-region. They were absent from the radix linguae. A pair of oval papillae vallatae was situated at the border between the corpus linguae and the radix linguae. Papillae foliatae were absent. The epithelial surface of each papilla filiformis consisted of a circular concavity, a ring-like wall and either a single thumb-like process or 2-3 slender pointed processes, depending on their location. The morphology of the CTCs of the papillae filiformes also varied regionally. The papillae linguales of the Japanese shrew-mole were morphologically similar to those of other Talpidae and Soricidae, including the common shrew, particularly with respect to the papillae filiformes in the mid- and caudal regions of the corpus linguae.
منابع مشابه
Major category: Biological Sciences Minor category: Medical Sciences Title: Molecular phylogeny of a newfound hantavirus in the Japanese shrew mole (Urotrichus talpoides) Running title: Hantavirus in the Japanese Shrew Mole Authors:
Recent molecular evidence of genetically distinct hantaviruses in shrews, captured in widely separated geographical regions, corroborates decades-old reports of hantavirus antigens in shrew tissues. Apart from challenging the conventional view that rodents are the principal reservoir hosts, the newly identified soricid-borne hantaviruses raise the possibility that other soricomorphs, notably ta...
متن کاملFurther observations on parasites of the Japanese shrew mole, Urotrichus talpoides temminck.
A new lungworm, Angiostrongylus minutus n. sp. (Nematoda: Metastrongylidae), was described from 13 out of 14 specimens of the Japanese shrew mole, Urotrichus talpoides TEMMINCK, which were collected at Yumoto, Nikko and areas near Lakes Saiko and Kawaguchi at the foot of Mt. Fuji. The male of this nematode is characterized by its minute body size, the existence of the gubernaculum, two simple b...
متن کاملMolecular phylogeny of a newfound hantavirus in the Japanese shrew mole (Urotrichus talpoides).
Recent molecular evidence of genetically distinct hantaviruses in shrews, captured in widely separated geographical regions, corroborates decades-old reports of hantavirus antigens in shrew tissues. Apart from challenging the conventional view that rodents are the principal reservoir hosts, the recently identified soricid-borne hantaviruses raise the possibility that other soricomorphs, notably...
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عنوان ژورنال:
دوره 42 شماره
صفحات -
تاریخ انتشار 2013