HISTOLOGICAL AND HISTOCHEMICAL STUDIES ON THE OVIDUCT OF THE DOMESTIC FOWL WITH SPECIAL REFERENCE TO THE REGION OF UTEROVAGINAL JUNCTURE.
HISTOLOGICAL AND HISTOCHEMICAL STUDIES ON THE OVIDUCT OF THE DOMESTIC FOWL WITH SPECIAL REFERENCE TO THE REGION OF UTEROVAGINAL JUNCTURE.
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家禽输卵管的组织学和组织化学研究，特别是子宫阴道结合部区域。
DOI：
10.1679/aohc1950.23.447
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发表时间：
1963
期刊：
影响因子：
--
通讯作者：
Shunsaku Fujii
中科院分区：
文献类型：
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作者：
Shunsaku Fujii
对鸡输卵管连接子宫和阴道的部位进行了组织学和组织化学研究。结果发现，子宫尾端有一特殊的粘膜带，阴道起始处有一特殊的粘膜带。每个区的特点是结构如下1。子宫尾端在阴道口前面形成一个约0.5-1厘米宽的环形区域。它被灰白色的粘膜覆盖，有低矮的、有点纵向排列的粘膜皱折。这些褶皱不同于子宫的主要部分，后者呈叶子状，颜色略带粉红色。这一区域通常通过粘膜颜色来区分，黏膜颜色根据输卵管的功能活动而变化。这个区域的组织学特征是存在不同于子宫腺的小管状腺，它们散布在粘膜固有层疏松结缔组织的基质中。该带的组织化学特征是在其覆盖的上皮中沉积胆固醇酯类脂。根据输卵管活动的不同，沉积的脂类在数量上也不同。一般来说，在输卵管内没有卵子的阶段是丰富的，但在排出卵子后立即相当稀少。阴道起始处形成一个距离阴道口约1厘米的区域，该区域的直径比阴道的其他部分大，粘膜皱褶比阴道的其他部分更小更宽。这一区域最显著的组织学特征是存在大的管状腺，称为阴道腺。在组织化学上，阴道腺细胞的特征是存在大量的胆固醇酯类脂。阴道腺细胞中该物质含量的功能变化与前一子宫复盖上皮相同。子宫尾端和阴道起始部的腺体功能尚不清楚。从它们的位置和功能活动来看，这些腺体似乎有助于蛋壳角质层的形成。上述两部分的胆固醇酯类沉积是子宫阴道交界区最显著的特征。这种物质似乎在角质层的形成中起到了一定的作用，因为它是在产卵时排出的。
The region connecting the uterus and the vagina of the fowl oviduct was studied histologically and histochemically. It was found that there were a special mucosal zone at the caudal end of the uterus and another at the beginning of the vagina. Each zone was characterized by the following structures.1. The caudal end of the uterus forms a ring shaped zone, about 0.5-1cm wide, immediately before the vaginal orifice. It is covered with a grayish-white mucous membrane and has low, somewhat longitudinally arranged mucosal folds. These folds differ from those of the main portion of the uterus, which are leaf-like and faintly pinkish in color. This zone is usually distinguished by the mucosal color, which is variable according to the functional activity of the oviduct. The histological feature of this zone is the presence of small tubular glands which are different from the uterine glands and which are scattered in the stroma of loose connective tissue of the mucosal lamina propria. The histochemical feature of the zone consists in the deposition of cholesterin ester lipid in its covering epithelium. The deposited lipid varies in quantity according to the activity of the oviduct. Generally, it is abundant in a stage when there is no egg in the oviduct, but it is quite scanty immediately after the expulsion of an egg.2. The beginning of the vagina forms an area, about 1cm far from the vaginal orifice, which is greater in diameter and which has lower and wider mucosal folds than the other portions of the vagina, the most striking histological feature of this zone is the presence of large tubular glands, which are called the vaginal glands. Histochemically, the glandular cells of the vaginal gland is characterized by the presence of a large amount of cholesterin ester lipid. The functional change in the amount of this substance in the vaginal gland cells is the same as in the preceding uterine covering epithelium.3. The function of the glands at the caudal end of the uterus and at the beginning of the vagina could not be clarified. Judging from their position and functional activity, these glands seem to contribute to the formation of the cuticle layer of egg shell.4. The deposition of cholesterin ester lipid in the two parts mentioned above is the most outstanding feature of the region of the uterovaginal juncture. This substance seems to play some role in the formation of the cuticle layer, since it is discharged when the egg is laid.