Ojima K
First Laboratory of the Dental Research Institute, School of Dentistry at Tokyo, The Nippon Dental University, Japan.
Ann Anat. 2001 Jan;183(1):19-24. doi: 10.1016/S0940-9602(01)80009-1.
A scanning electron microscopic study was done of the three-dimensional, morphological structure and classification by means of microvascular cast specimens (MVCS) of the filiform (FiP), fungiform (FuP) and circumvallate papillae (CvP) on the postero-centro-peripheral, and conical papillae (CoP) on the posteroperipheral-dorsal surface of the caudal portion of the beagle dog tongue. The characteristics and functional arrangement of each lingual papilla were as follows: the FiP densely and geometrically covered the entire postero-centro-peripheral dorsal surface. The outer structure of the FiP, consisting of both the ascending and descending branches from their tributaries, was a spoon-like capillary micro-network structure with a sharp arrowhead-like top inclined posteriorly. On the other hand, the outer structure of the FuP, appearing sporadically on the oblique lines of the FiP, was of round form consisting of a capillary microvascular network structure. The FuP, consisting of ascending and descending branches similar to the FiP, were distributed sporadically and geometrically on oblique lines in a V-form running from both peripheral sides to postero-central direction on the FiP A group of three CvPs were arranged on oblique lines in a V form from the peripheral to the postero-central region on the postero-dorsal surface. The outer shape of the microvascular network structure of the CvP was a round fence-like structure surrounding the papillary body and the papillary body consisted of an inner semi-spherical microvascular network structure. The CoP densely covered the entire postero-peripheral-dorsal surface. The exterior figure of the conical micro-network structure, consisting of both the ascending and descending branches of the CoP, was a cone-like capillary network structure, and the sharp tops were inclined posteriorly. They were classified into three types: large (L-CoP), medium (M-CoP) and small (S-CoP) according to the morphological characteristics in shape, size and the distributive position. It was conjectured that the FiP play a concentric functionally important role in transporting food and liquid from both sides in a postero-central direction towards the pharynx. And, on the other hand, the FuPs play an assistant role in receiving gustatory sensations from the masticated food and liquid on the central dorsal surface. The CoP play a functionally important role on the postero-peripheral-dorsal surface, in transporting food and liquid towards the pharynx and a complementary role of the CvP is to receive gustatory sensations from masticated food and liquid on the postero-peripheral-dorsal surface of the caudal portion of the beagle dog tongue.
利用微血管铸型标本（MVCS），对比格犬舌尾后部后中周缘的丝状乳头（FiP）、菌状乳头（FuP）和轮廓乳头（CvP）以及后外侧背表面的圆锥乳头（CoP）的三维形态结构和分类进行了扫描电子显微镜研究。每个舌乳头的特征和功能排列如下：FiP密集且呈几何形状覆盖整个后中周缘背表面。FiP的外部结构由其分支的升支和降支组成，是一种勺状的毛细血管微网络结构，顶部呈尖锐的箭头状且向后倾斜。另一方面，FuP偶尔出现在FiP的斜线上，呈圆形，由毛细血管微网络结构组成。FuP由与FiP相似的升支和降支组成，呈散在且几何形状分布在FiP上从两侧向后中方向呈V形排列的斜线上。一组三个CvP呈V形排列在舌后背面从周边到后中区域的斜线上。CvP微血管网络结构的外形是围绕乳头体的圆形栅栏状结构，乳头体由内部半球形微血管网络结构组成。CoP密集覆盖整个后外侧背表面。由CoP的升支和降支组成的圆锥微网络结构的外形是一种圆锥状毛细血管网络结构，尖锐的顶部向后倾斜。根据形状、大小和分布位置的形态特征，它们被分为三种类型：大（L-CoP）、中（M-CoP）和小（S-CoP）。据推测，FiP在将食物和液体从两侧向后中方向输送至咽部方面起着重要的同心功能作用。另一方面，FuP在接收来自中央背表面咀嚼食物和液体的味觉方面起辅助作用。CoP在舌后外侧背表面在将食物和液体输送至咽部方面起着重要功能作用，而CvP的互补作用是接收来自比格犬舌尾后部后外侧背表面咀嚼食物和液体的味觉。
