Freire Elisa Carla Barra, Moreira Lityane Gabriela da Silva, Giese Elane Guerreiro, Branco Érika, da Silva Leila Menezes, de Lima Ana Rita
Laboratory of Morphological Animal Research (LaPMA), Federal Rural University of Amazonian, Belém-PA, Brazil.
Laboratory of Animal Histology and Embriology (LHEA), Federal Rural University of Amazonian, Belém-PA, Brazil.
Anat Histol Embryol. 2019 Sep;48(5):421-428. doi: 10.1111/ahe.12462. Epub 2019 Jul 1.
The ocelot (Leopardus pardalis) is a Felidae of wide geographical distribution and food flexibility; therefore, it is essential to understand the morphology of the species. Thus, we aimed to describe its lingual morphology in order to gain information regarding the anatomy of this carnivore's digestive system. The tongues were removed for ex situ macroscopic and morphometric analyses, as well as for light microscopy and scanning electron microscopy, of fragments of the different lingual regions. The tongue of L. pardalis had an elongated form that was subdivided into the apex, body and root, in which four papillary types were observed: filiform, fungiform, circumvallate and conical. It presented with a stratified, keratinized squamous epithelium, followed by loose and dense connective tissues, as well as a skeletal striated musculature that comprised most of the organ. In addition, in scanning electron microscopy the filiform papillae showed a complex with multiple layers of keratin with triangular shape projected caudally in oral cavity. The fungiform papillae were distributed among the filiform and showed a rounded shape with some gustatory pores, and are keratinized but in a lower intensity if compared with filiform. The vallate papillae, located in lingual root, showed an oval format, had a deep groove surrounded the papillae and some gustatory pores. The conical papillae are located in lingual root and are similar to the filiform. The tongue of L. pardalis resembles other carnivorous species, mainly among felids. However, it differed in relation to the quantity of vallate papillae and the absence of foliate papillae.
豹猫（Leopardus pardalis）是一种地理分布广泛且食物适应性强的猫科动物；因此，了解该物种的形态至关重要。因此，我们旨在描述其舌部形态，以便获取有关这种食肉动物消化系统解剖结构的信息。将舌头取出，用于对不同舌区片段进行体外宏观和形态测量分析，以及光学显微镜和扫描电子显微镜检查。豹猫的舌头呈细长形，可分为舌尖、舌体和舌根，在其中观察到四种乳头类型：丝状乳头、菌状乳头、轮廓乳头和锥形乳头。它具有分层的角化复层鳞状上皮，接着是疏松和致密的结缔组织，以及构成该器官大部分的骨骼肌。此外，在扫描电子显微镜下，丝状乳头显示出一种具有多层角蛋白的复合体，呈三角形，在口腔中向尾侧突出。菌状乳头分布在丝状乳头之间，呈圆形，有一些味觉孔，并且角化，但与丝状乳头相比强度较低。轮廓乳头位于舌根，呈椭圆形，有一条围绕乳头的深沟和一些味觉孔。锥形乳头位于舌根，与丝状乳头相似。豹猫的舌头与其他食肉动物物种相似，主要是在猫科动物中。然而，它在轮廓乳头的数量和叶状乳头的缺失方面有所不同。
