中国水牛垂体组织结构的研究
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A HISTOLOGICAL STUDY ON THE HYPOPHYSIS OF THE CHINESE BUFFALO (Bubalus bubalis)
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    摘要:

    本研究通过纵、横和水平切片,对50头成年中国水牛(Bubalus bubalis)垂体进行了组织结构观察。染色方法有四种:H-E;PAS(Periodic Acid Schiff);桔黄G和PAS-桔黄G染色法。 远侧部发达,可明显地分为三个区:PAS阳性的嗜碱性细胞较集中于多血管的喙侧部,形成嗜碱性细胞区;染上桔黄G的嗜酸性细胞在尾侧部形成嗜酸性细胞区;两者之间为嗜碱性细胞和嗜酸性细胞混合区。细胞排列成团索状和滤泡状,毛细血管和血窦丰富。结节部完全包绕漏斗茎,血管非常丰富;细胞包括胞核深染胞质较少的未分化细胞、嫌色细胞及少量PAS阳性嗜碱性细胞,它们排成小管状或滤泡状;未见有嗜酸性细胞。中间部较发达,大部或全部包绕着神经部,其组织结构呈分叶状,细胞有嗜碱性细胞和嫌色细胞两种,排列成团索状和滤泡状,但小叶的周边有一层排列整齐的嗜碱性柱状细胞;未发现Wulzeu氏圆锥。神经部较小,正中隆起主要在前侧加厚。强PAS阳性的胶体见于成年中国水牛腺垂体各部及神经垂体。 本文还对中国水牛垂体各部分的形态结构、细胞分布和胶体出现情况等方面与牛及其他动物进行了比较。

    Abstract:

    The histological structures of the hypophyses of 50 adult Chinese buffalos were studied by sections in sagittal,transverse and horizontal planes.Four stainig methods were used;Haematoxylin and Eosin(H-E),Periodic Acid Schiff PAS),Orange G(OG)and PAS-OG.The pars distalis is well developed.lt is apparently divided into three zones.The PAS-positive basophils are mostly localized in the highly vascular rostral portion,forming a basophil zone while the OG-positiv acidophils in the candal portion forming an acidophil zone.Between these two zones is the mixed zone of basophils and acidophils.The cells are grouped in clusters and cords or in follicles.There are numerous sinusoid capillaries.The pars tuberalis completely surrounds the infundibular stem.It appears highly vascularized and consists of undifferen-tiatied cells each with a dark staining nucleus and a scant amount of cytoplasm,chromophobe cells and a few PAS-positive basophils.They are arranged in tnbules or in follicles.NO acidophils were found.The pars intermedia is well developed,completely or mostly surrounding the pars nervosa.It is lobulated and consists of basophils and chromophobe cells arranged in clusters and cords or in follicles,but the lobules are bordered by a single layer of basophilic columnar cells.The cone of Wulzen was not found.The pars nervosa of the Chinese buffalo is relatively small.The median eminence is thickened mainly in the anterior part.The strongly PAS-positive colloid was found in all parts of the adeno-hypophysis and neurohypophysis in the mature Chinese buffalo.Comparisons were made of the morphological features of various parts of the hypophysis,distribution of cells and the occurrence of colloid of the Chinese buffalo with those of the ox or other animals.

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杨世英 刘舜业.中国水牛垂体组织结构的研究[J].华南农业大学学报,1989,(1):49-58

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