Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt.
Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.
Microsc Res Tech. 2021 May;84(5):891-901. doi: 10.1002/jemt.23649. Epub 2020 Nov 20.
The morphology of different lingual papillae of the Egyptian goats was studied by gross observation, scanning electron microscopy, and light microscopy. According to function, two types of papillae were present; mechanical (filiform, conical and lenticular papillae) and gustatory papillae (fungiform and vallate papillae). Two types of filiform papillae were detected with different shape and position. Moreover, two types of conical and lenticular papillae could be recognized on the lingual torus. Abundant fungiform papillae were found on the dorsal and ventral surfaces of the tip of the tongue. The vallate papillae had also different shapes. Taste buds were demonstrated within the epithelium of the dorsal surfaces of the fungiform papillae and the lateral surfaces of the vallate papillae. In addition, a longitudinal row of large papillae was located on the lateral aspect of the tongue in relation to the filiform papillae. These papillae were suggested to be called elongated conical papillae and may be considered as ones of the lingual papillae. In conclusion, the current study provides a detailed description of the different lingual papillae of the Egyptian goat's tongue. Presence of different types and shapes of mechanical and gustatory lingual papillae in goats' tongue suggests a high degree of functional adaptation to their diet.
本研究通过大体观察、扫描电子显微镜和光学显微镜观察了埃及山羊舌头上不同舌乳头的形态。根据功能，舌乳头可分为机械性（丝状、圆锥形和透镜状乳头）和味觉乳头（蕈状和轮廓乳头）。发现了两种不同形状和位置的丝状乳头。此外，在舌丘上可以识别出两种类型的圆锥形和透镜状乳头。在舌尖的背侧和腹侧表面发现了丰富的蕈状乳头。味蕾存在于丝状乳头的背侧上皮和轮廓乳头的侧表面上皮内。此外，在丝状乳头的侧面，舌的外侧有一行大的乳头。这些乳头被建议称为伸长圆锥形乳头，可被视为舌乳头之一。总之，本研究详细描述了埃及山羊舌头上不同的舌乳头。山羊舌头上存在不同类型和形状的机械性和味觉性舌乳头，表明它们对其饮食有高度的功能适应性。
