白化大鼠小网膜和大网膜的形态差异。

IF 2 3区 医学 Q2 ANATOMY & MORPHOLOGY
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引用次数: 0

摘要

背景:文献报道,所有哺乳动物都有两个网膜,即小网膜和大网膜。从根本上说,除了 "小 "或 "大 "这两个形容词外,这两个器官的名称是相同的,它们之间应该没有区别。然而,文献中并未对小网膜的结构进行明确描述,也未对小网膜和大网膜进行形态学对比分析,因此有必要进行深入研究。因此,我们的研究旨在分析白化大鼠大网膜和小网膜的形态功能差异:实验对象为 20 只成熟雄性白化大鼠,体重为 298,28±7,36 克。研究材料为小网膜和大网膜的制备物,用 10%的中性缓冲福尔马林固定。石蜡切片经苏木精-伊红和范吉森染色:研究结果表明,白化大鼠的大网膜与网膜的其他衍生物(韧带和肠系膜)不同,它是以 "围裙 "的形式向腹腔特定深度的自由延伸(主要来自胃大弯),与浆膜重复。这种复制的特点是由两种结构上相互依存的形态组成。其中包括血管-脂肪弧,与被称为乳斑的淋巴结相关联,以及结合浆膜-网膜。对小网膜的研究结果表明,在所有病例中,小网膜都位于肝脏下方,只有在切除肝脏后才能看到。它以两条韧带的形式存在:肝十二指肠韧带和肝胃韧带,这两条韧带包含两种主要的结构形式,我们称之为血管脂肪刺,在这些刺之间是血清网状膜。众所周知,小网膜由韧带构成,韧带从肝门延伸至胃小弯和十二指肠。由于这种排列方式,小网膜缺乏大网膜特有的移动性,而大网膜在快速应对胃肠道损伤方面发挥着至关重要的作用。尽管名称相同,但这两种形态在形状、形态结构、发育和功能上都有所不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphological differences between the lesser and the greater omenta in albino rats

Background

Publications report that all mammals have two omenta, namely, lesser omentum and greater omentum. Basically, these organs, which share the same name except for the adjective “lesser” or “greater,” should not differ from each other. However, no clear description of the structure of the lesser omentum, as well as comparative morphological analysis between the lesser and greater omenta have been found in the literature, which necessitates a thorough investigation. Therefore, the aim of our study was to analyze the morphofunctional differences between the greater and lesser omenta in albino rats.

Method

The experiment involved 20 mature male albino rats, weighing 298,28±7,36 grams. The material for our study were preparations of lesser and greater omenta, fixed in 10 % of neutral buffered formalin. Paraffin sections were stained with hematoxylin-eosin and Van Gieson stain.

Results

The findings of the study showed that the greater omentum in albino rats, unlike other derivatives of the omentum (ligaments and mesenteries), represents a free extension (mostly from the greater curvature of the stomach), in the form of an “apron,” into a specific depth of the peritoneal cavity, duplicating the serous membrane. This duplication is characterized by the composition of two structurally interdependent formations. These include vascular-fatty arcades, associated with lymphoid nodules known as milky spots, and binding serous-reticular membranes. The findings of the study of the lesser omentum have established that in all cases it is located beneath the liver and becomes visualized only after hepatolifting. It is presented in the form of two ligaments: hepatoduodenal and hepatogastric, which contain two main structured formations, which we called vascular-fatty spurs, between these spurs, serous-reticular membranes are located.

Conclusion

despite having similar names, the lesser omentum, a derivative of the peritoneum, is fundamentally different. As it is well known, the lesser omentum is represented by ligaments that extend from the liver hilus to the lesser curvature of the stomach and the duodenum. Due to this arrangement, the lesser omentum lacks the mobile activity characteristic of the greater omentum, which plays a crucial role in rapid response to damage in the gastrointestinal tract. Despite sharing the same names, both formations differ in shape, morphological structure, development and function

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来源期刊
Annals of Anatomy-Anatomischer Anzeiger
Annals of Anatomy-Anatomischer Anzeiger 医学-解剖学与形态学
CiteScore
4.40
自引率
22.70%
发文量
137
审稿时长
33 days
期刊介绍: Annals of Anatomy publish peer reviewed original articles as well as brief review articles. The journal is open to original papers covering a link between anatomy and areas such as •molecular biology, •cell biology •reproductive biology •immunobiology •developmental biology, neurobiology •embryology as well as •neuroanatomy •neuroimmunology •clinical anatomy •comparative anatomy •modern imaging techniques •evolution, and especially also •aging
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