Farrag F A, Morsy K, Hamdi H, Kassab M, Hassan A, Abdelmohdy F, Shukry M, Abumandour M M A, Fayed M
Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt.
Biology Department, College of Science, King Khalid University, Abha, Saudi Arabia, and Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt.
Iran J Vet Res. 2021 Fall;22(4):298-309. doi: 10.22099/IJVR.2021.40728.5898.
The available data is scanty about Egyptian water buffalo lips, cheeks, and palate.
The current investigation was focused on describing the morphology of the lip, cheek, and palate.
Our study included the gross, light, and electron microscopic examinations of ten heads of the Egyptian water buffalos.
The nasolabial plate surface carried numerous scales of keratinized epithelium. Internal labial surface and labial mucocutaneous junctions were covered with stratified squamous keratinized epithelium. Two types of hair follicles in the dermis included ordinary and cavernous types characterized by cavernous space. The conical papillae on the internal aspect of the oral commissure were projected from the mucous membrane. Seromucous glands were occasionally observed under the oral mucous membrane of the commissure and gave positive PAS and AB. Conical papillae density on the inner cheek surface had some variations: the rostral part had large papillae, while the dorsal part had numerous papillae than the ventral part, the caudal part had a smaller number of papillae, while the middle part was devoid of papillae. Parotid duct opening in the buccal vestibule was without papillae. Conical papillae had two surfaces; the rostral surface was highly keratinized than the caudal one. The buccal gland was a compound tubuloacinar mixed (mucoserous) gland and mucus acini only reacted to PAS and AB. The oral surface of palatine rugae was covered with highly keratinized epithelium than the aboral surface. Palatine glands showed PAS and AB positive.
The result describes the relationship between the available food particles, environmental conditions and the lip, cheek, and palate appearance, and structure.
关于埃及水牛嘴唇、脸颊和上颚的现有数据很少。
当前的研究集中于描述嘴唇、脸颊和上颚的形态。
我们的研究包括对十头埃及水牛头部进行大体、光学和电子显微镜检查。
鼻唇板表面有许多角质化上皮鳞片。唇内表面和唇黏膜皮肤交界处覆盖着复层鳞状角质化上皮。真皮中有两种类型的毛囊，包括普通型和海绵状型，其特征为有海绵状间隙。口角内侧的锥形乳头从黏膜突出。在口角的口腔黏膜下偶尔观察到浆液黏液腺，其过碘酸雪夫反应（PAS）和阿利新蓝染色（AB）呈阳性。脸颊内表面的锥形乳头密度存在一些差异：吻侧部分有大乳头，而背侧部分的乳头比腹侧部分多，尾侧部分乳头数量较少，而中间部分没有乳头。腮腺导管在颊前庭的开口处没有乳头。锥形乳头有两个面；吻侧面比尾侧面角质化程度高。颊腺是一种复合管泡状混合（黏液浆液性）腺，只有黏液腺泡对PAS和AB有反应。腭皱襞的口腔面比非口腔面覆盖着高度角质化的上皮。腭腺PAS和AB染色呈阳性。
该结果描述了可获取的食物颗粒、环境条件与嘴唇、脸颊和上颚外观及结构之间的关系。
