Morphology of the Filiform Lingual Papillae in Porcupine (Hystrix cristata)

Abstract

The light and scanning electron microscopic structure of the filiform lingual papillae was studied in five adult porcupine (three males and two females). The tongue was characterised by a round tip, a rostral median sulcus and a deep lingual fossa which was situated just rostral to a prominent inter-molar eminence corresponding to a torus linguae. The filiform papillae were curved, enclosed a large connective tissue core and were separated by wide inter-papillary zones covered by a thick epithelium. Most filiform papillae had a cylindrical shape, but the rostral and central parts of the tongue contained a number of flat, comb-shaped papillae with rounded tips.

Morphological Comparison of the Filiform Papillae of New Zealand White Rabbits (Oryctolagus cuniculus) as Domestic Mammals and Egyptian Fruit Bat (Rousettus aegyptiacus) as Wild Mammals Using Scanning Electron Microscopic Specimens

“…But there were four subtypes as noted in our study in New Zealand white rabbits and in frugivorous bats (Masuko et al; Trzcielinska-Lorych et al; Mqokeli & Downs) and ferret (Takemura et al, 2009). While three subtypes as noted in; bats (Jackowiak et al, 2009;Pastor et al, 1993), rat (Ojima et al, 1996), mice (Toprak, 2006), and rabbit (Nonaka et al), moreover there are two subtypes as in; bat (Park & Lee), Porcupine (Karan et al, 2011) and (Jackowiak, 2006) in European mole. There is only one types as noted in camel by (Qayyum et al, 1988).…”

“…On the contrary, it forms the primary pathway for the transport of food that comes in contact with the palate during mastication and swallowing, thus the observed more intensive keratinized layer, which serves as a protective mechanism (TrzcielinskaLorych et al). Filiform papilla provides the tongue with a rough surface suited for the movement and grinding of food (Karan et al, 2011).…”

Estudo histológico e comparativo das papilas linguais dos cervídeos Mazama americana e Mazama gouzoubira por microscopia de luz e eletrônica de varredura

“…A superϐície demonstrou papilas distribuídas por toda superϐície em ambas as espécies, existindo diferenças quanto à morfologia e densidade, e tamanho das papilas entre regiões da língua, onde aparentam ser proporcionalmente maiores na M. gouazoubira que na M. americana quando comparadas ao tamanho da língua, fato este ligado ao tipo de alimentação que cada espécie analisada possui segundo Zheng & Kobayashi (2006). No ápice, as papilas ϐiliformes de Mazama gouazoubira são maiores quando comparadas com as da Mazama americana por ter bordas levemente arredondadas e serem mais largas na base e apresentam maior altura, como visto na língua de bovinos (Steϐlik et al 1983) e gado Zavot (Sari et al 2010), enquanto na segunda espécie, serem mais ϐinas e alongadas, semelhante a encontrada na língua de cabras Saanen (Kurtul & Atalgin 2008, Fonseca et al 2011, Camelus dromedarius (Qayyum et al 1988), Hystrix cristata (Karan et al 2011), Equus asinus (Abd-Elnaeim et al 2002), Muntiacus reevesi (Zheng & Kobayashi 2006) e de Oryctolagus cuniculus (Silva 1999).…”

Sensing in the Mouth: A Model for Filiform Papillae as Strain Amplifiers

“…Detailed studies exist on rats [14,15], mice [16], porcupine [17], wild boar and pig [18], and humans [19,20]. An overview of evolution in papilla morphology among vertebrates was detailed in Iwasaki [21].…”