microvilli

简明释义

英[ˌmaɪkrəʊˈvɪlaɪ]美[ˌmaɪkroʊˈvɪlaɪ]

n. 微绒毛（microvillus 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The stomach mucosal epithelium consists of ciliated cells and microvilli.

胃粘膜上皮由纤毛细胞和微绒毛细胞组成。

2.Results (1) A lot of cilia and microvilli were obversed on the surface of hippocampal fimbria.

结果（1）大鼠海马伞的室管膜表面覆盖着大量的纤毛和微绒毛；

3.The microfilament is the skeletal structure of microvilli.

微绒毛活动的支撑骨架为微丝。

4.The microfilaments in the microvilli and pseudopodia are the skeleton of the movement.

微绒毛及伪足内的微丝是其运动的骨架结构。

5.Only in midgut there was structure of the typical microvilli.

仅中肠表面具典型微绒毛结构。

6.Scanning EM showed that many large cells with numerous dense slender microvilli were observed in the control.

扫描电镜观察，对照组的大细胞多，表面有多数密集的细长微绒毛。

7.The ice etching method was adapted to duplicate the form of grains in microvilli membrane.

采用冰冻蚀刻法复制微绒毛膜膜内粒子形态。

8.Microvilli on the cell membrane were commonly seen.

细胞膜上可见微绒毛突起；

9.The microvilli (微绒毛) on the surface of the epithelial cells increase the surface area for absorption.

上皮细胞表面的微绒毛增加了吸收的表面积。

10.Damage to the microvilli (微绒毛) can lead to malabsorption syndromes.

对微绒毛的损伤可能导致吸收不良综合症。

11.In histology, you can identify intestinal cells by their numerous microvilli (微绒毛).

在组织学中，你可以通过肠道细胞上众多的微绒毛来识别它们。

12.The absorption of nutrients in the intestines is greatly enhanced by the presence of microvilli (微绒毛).

肠道中营养物质的吸收因存在微绒毛而大大增强。

13.Researchers are studying how microvilli (微绒毛) contribute to the immune response in the gut.

研究人员正在研究微绒毛如何促进肠道中的免疫反应。

作文

Microvilli are tiny, finger-like projections that extend from the surface of certain cells, particularly those in the intestinal lining. These structures play a crucial role in increasing the surface area of the cell, which is vital for absorption and secretion processes. The presence of microvilli (微绒毛) significantly enhances the efficiency of nutrient absorption in the intestines. Each microvilli (微绒毛) is covered with a plasma membrane and contains various enzymes and transport proteins that facilitate the breakdown and uptake of nutrients from digested food. In the small intestine, the epithelial cells are densely packed with microvilli (微绒毛), forming what is known as the brush border. This specialized structure not only increases the surface area available for absorption but also serves to create a barrier that regulates the entry of substances into the bloodstream. The more microvilli (微绒毛) present, the greater the surface area, which means that the body can absorb more nutrients efficiently. The importance of microvilli (微绒毛) extends beyond just nutrient absorption. They also play a role in signaling and communication between cells. For instance, certain receptors located on the microvilli (微绒毛) can detect changes in the intestinal environment, such as the presence of pathogens or toxins, triggering appropriate immune responses. Moreover, microvilli (微绒毛) are not exclusive to the intestines; they can also be found in other parts of the body, including the kidneys and respiratory tract. In the kidneys, microvilli (微绒毛) enhance the reabsorption of water, ions, and essential nutrients back into the bloodstream, while in the respiratory tract, they help to trap and move mucus and debris out of the lungs. The health and functionality of microvilli (微绒毛) can be affected by various factors, including diet, disease, and environmental conditions. For example, a diet low in fiber may lead to a reduction in the number of microvilli (微绒毛), impairing nutrient absorption and overall gut health. Additionally, conditions like celiac disease and inflammatory bowel disease can damage the microvilli (微绒毛), leading to malabsorption and nutritional deficiencies. In conclusion, microvilli (微绒毛) are essential structures that significantly contribute to the body's ability to absorb nutrients and maintain homeostasis. Understanding their function and importance can provide insights into various health issues and the significance of maintaining a balanced diet rich in nutrients that support the integrity of these vital cellular projections. As research continues, the role of microvilli (微绒毛) in health and disease will likely uncover even more fascinating aspects of cellular biology and nutrition.

微绒毛是从某些细胞表面伸出的微小指状突起，尤其是肠道内衬的细胞。这些结构在增加细胞的表面积方面起着至关重要的作用，这对于吸收和分泌过程至关重要。微绒毛显著提高了肠道中营养物质吸收的效率。每个微绒毛都覆盖着细胞膜，并含有各种酶和转运蛋白，促进消化食物中营养物质的分解和摄取。在小肠中，上皮细胞密集地排列着微绒毛，形成所谓的刷状缘。这种特化结构不仅增加了可用于吸收的表面积，还创建了一个屏障，调节物质进入血液的过程。微绒毛越多，表面积越大，这意味着身体可以更有效地吸收更多的营养物质。微绒毛的重要性不仅限于营养吸收。它们还在细胞之间的信号传递和沟通中发挥作用。例如，位于微绒毛上的某些受体可以检测肠道环境的变化，如病原体或毒素的存在，从而触发适当的免疫反应。此外，微绒毛并不仅限于肠道；它们也可以在身体的其他部位找到，包括肾脏和呼吸道。在肾脏中，微绒毛增强了水分、电解质和必需营养物质回流到血液中的重吸收，而在呼吸道中，它们帮助捕获和移动粘液和杂质出肺部。微绒毛的健康和功能可能会受到多种因素的影响，包括饮食、疾病和环境条件。例如，低纤维饮食可能导致微绒毛数量减少，从而损害营养吸收和整体肠道健康。此外，像乳糜泻和炎症性肠病等疾病可能会损害微绒毛，导致营养不良和营养缺乏。总之，微绒毛是重要的结构，显著贡献于身体吸收营养和维持内稳态的能力。理解它们的功能和重要性可以为各种健康问题提供见解，并强调维持富含支持这些重要细胞突起完整性的营养素的均衡饮食的重要性。随着研究的持续，微绒毛在健康和疾病中的作用可能会揭示细胞生物学和营养学的更多迷人方面。