拉赫马尼羊（Ovis aries）硬腭的形态测量学、组织学和扫描电子显微镜研究,Microscopy Research and Technique

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拉赫马尼羊（Ovis aries）硬腭的形态测量学、组织学和扫描电子显微镜研究
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-07-26 , DOI: 10.1002/jemt.23887
Fatma A Madkour ₁ , Elsayed S I Mohammed ₂ , Rasha Radey ₃ , Mohammed Abdelsabour-Khalaf ₁

Affiliation

本研究调查了拉赫马尼羊（Ovis aries）。使用形态计量学、组织学和扫描电子显微镜检查对来自 9 只健康成年雄性绵羊的样本进行了研究。在形态上，硬腭拉长，口吻狭窄，尾端宽。尖锐的乳头呈心形，两侧有凹槽，鼻腭管在凹槽上开口。腭中缝呈凹槽形式，尾部有脊。中缝两侧有13-15对腭脊，主要占据狭窄部分。宽的部分有一个粗糙的部分，在头侧包含很少的脊，在尾部有一个平滑的部分。组织学上，尖锐的乳头和腭脊由位于固有层致密层上的角化复层鳞状上皮排列。尖锐的乳头的特征是固有层中存在浆液性唾液腺和透明软骨碎片。唾液腺在阔部直至硬腭末端变得丰富且发达。所有腭唾液腺均为阿尔新蓝-高碘酸-希夫阳性。通过扫描电镜，在腭脊表面散布着许多腺体开口。总之，拉赫马尼羊的硬腭呈现出特征性特征，这可能与物种差异、摄食行为和可能的功能适应性有关。这是第一项报告在切牙乳头中存在软骨节段和唾液腺的研究，并提供了 Rahmani 羊硬腭的详细描述。唾液腺在阔部直至硬腭末端变得丰富且发达。所有腭唾液腺均为阿尔新蓝-高碘酸-希夫阳性。通过扫描电镜，在腭脊表面散布着许多腺体开口。总之，拉赫马尼羊的硬腭呈现出特征性特征，这可能与物种差异、摄食行为和可能的功能适应性有关。这是第一项报告在切牙乳头中存在软骨节段和唾液腺的研究，并提供了 Rahmani 羊硬腭的详细描述。唾液腺在阔部直至硬腭末端变得丰富且发达。所有腭唾液腺均为阿尔新蓝-高碘酸-希夫阳性。通过扫描电镜，在腭脊表面散布着许多腺体开口。总之，拉赫马尼羊的硬腭呈现出特征性特征，这可能与物种差异、摄食行为和可能的功能适应性有关。这是第一项报告在切牙乳头中存在软骨节段和唾液腺的研究，并提供了 Rahmani 羊硬腭的详细描述。通过扫描电镜，在腭脊表面散布着许多腺体开口。总之，拉赫马尼羊的硬腭呈现出特征性特征，这可能与物种差异、摄食行为和可能的功能适应性有关。这是第一项报告在切牙乳头中存在软骨节段和唾液腺的研究，并提供了 Rahmani 羊硬腭的详细描述。通过扫描电镜，在腭脊表面散布着许多腺体开口。总之，拉赫马尼羊的硬腭呈现出特征性特征，这可能与物种差异、摄食行为和可能的功能适应性有关。这是第一项报告在切牙乳头中存在软骨节段和唾液腺的研究，并提供了 Rahmani 羊硬腭的详细描述。

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Morphometrical, histological, and scanning electron microscopic investigations on the hard palate of Rahmani sheep (Ovis aries)

The present study investigated the hard palate of Rahmani sheep (Ovis aries). Samples from nine healthy adult male sheep were investigated using morphometrical, histological and scanning electron microscopic examination. Morphologically, the hard palate was elongated, narrow rostrally, and wide caudally. The incisive papilla was heart-shaped, flanked on both sides by a groove on which the nasopalatine duct opened. The palatine raphe was in the form of a groove that contained a ridge caudally. On both sides of the raphe, 13–15 pairs of palatine ridges were present and mainly occupying the narrow part. The wide part had a rough part that contains few ridges rostrally and a smooth part caudally. Histologically, the incisive papilla and palatine ridges were lined by a keratinized stratified squamous epithelium resting on a dense layer of lamina propria. The incisive papilla characterized by the presence of seromucoid salivary glands and hyaline cartilage fragments in the lamina propria. The salivary glands became abundant and well-developed in the wide part till the end of hard palate. All palatine salivary glands were Alcian blue-periodic acid–Schiff positive. By scanning electron microscopy, numerous gland openings were scattered on the surface of the palatine ridges. In conclusion, the hard palate of Rahmani sheep presented characteristic features, which may be related to the species differences, feeding behavior, and possible functional adaptations. This is the first study to report the presence of cartilaginous segments and salivary glands in the incisive papilla and provide detailed descriptions of the Rahmani sheep hard palate.

更新日期：2021-07-26

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