microvillus

简明释义

英[ˌmaɪkrəʊˈvɪləs]美[ˌmaɪkroʊˈvɪləs]

n. （细胞表面的）微绒毛；指状突；微小突起物

复 数 m i c r o v i l l i

英英释义

单词用法

同义词

反义词

例句

1.AKP on microvillus of group a and cell fold membrane of renal tubular epithelial cell appeared to have some brown granules, sparsely distributed. Sometimes there were no AKP on the above sites.

组肾小管上皮细胞微绒毛膜上和细胞褶膜上的AKP呈少量褐色、细颗粒状，稀疏分布或无akp存在。

2.The damage of microvillus in bone marrow was alleviated.

减轻骨髓微血管损害，促进辐射后造血微环境的恢复；

3.AKP on microvillus of group a and cell fold membrane of renal tubular epithelial cell appeared to have some brown granules, sparsely distributed. Sometimes there were no AKP on the above sites.

组肾小管上皮细胞微绒毛膜上和细胞褶膜上的AKP呈少量褐色、细颗粒状，稀疏分布或无akp存在。

4.Result: TS damaged the ultrastructure of S180 cancer cells, shortened and thickened the microvillus, swelled mitochondria.

结果：TS可破坏S180肿瘤细胞超微结构，使其细胞膜微绒毛变粗短，数量减少，线粒体肿胀；

5.The absorption of nutrients in the intestines occurs through the tiny projections called microvillus (微绒毛).

营养物质在肠道中的吸收是通过称为microvillus（微绒毛）的小突起进行的。

6.Each microvillus (微绒毛) increases the surface area of the intestinal lining, enhancing nutrient uptake.

每个microvillus（微绒毛）增加了肠道内衬的表面积，从而增强了营养物质的摄取。

7.In the laboratory, scientists visualize microvillus (微绒毛) using electron microscopy.

在实验室中，科学家们使用电子显微镜可视化microvillus（微绒毛）。

8.Damage to the microvillus (微绒毛) can lead to malabsorption syndromes.

对microvillus（微绒毛）的损伤可能导致吸收不良综合症。

9.Researchers are studying how the structure of microvillus (微绒毛) can affect digestive health.

研究人员正在研究microvillus（微绒毛）的结构如何影响消化健康。

作文

Microvilli are tiny, finger-like projections that extend from the surface of many epithelial cells, particularly in the intestines and kidneys. These structures play a crucial role in increasing the surface area of the cell, allowing for greater absorption and secretion of substances. The term microvillus (中文释义: 微绒毛) refers to a single projection, while 'microvilli' is the plural form. In the human intestine, for example, the presence of microvilli significantly enhances nutrient absorption by providing a larger surface area for interaction with digested food. Each microvillus is composed of a core of actin filaments, which are part of the cytoskeleton of the cell. This structure not only supports the microvillus but also helps in maintaining its shape and function. The arrangement of these filaments allows the microvilli to be both stable and flexible, enabling them to effectively absorb nutrients while adapting to the movement of the intestinal contents.In addition to their role in absorption, microvilli also contribute to the overall health of the epithelial layer. They help to form a barrier that protects underlying tissues from pathogens and toxins. This protective function is especially important in the gut, where a large number of bacteria reside. The presence of microvilli aids in the selective absorption of beneficial substances while preventing harmful agents from entering the bloodstream.The study of microvilli has significant implications for understanding various diseases. For instance, conditions such as celiac disease can damage the microvilli, leading to malabsorption of nutrients and resulting in a range of health issues. Similarly, inflammatory bowel diseases may also affect the structure and function of these projections. Researchers are continually investigating how microvilli interact with different dietary components and how they can be influenced by factors such as gut microbiota and medication.Furthermore, advancements in microscopy techniques have allowed scientists to visualize microvilli in unprecedented detail. This enhanced understanding can lead to new therapeutic strategies aimed at restoring the integrity and function of microvilli in patients suffering from gastrointestinal disorders. For example, treatments that promote the regeneration of microvilli could potentially improve nutrient absorption and overall gut health.In conclusion, microvilli are essential structures that greatly enhance the functionality of epithelial cells, particularly in the digestive system. Their ability to increase surface area for absorption, protect against harmful substances, and adapt to physiological changes makes them a focal point of research in cellular biology and medicine. Understanding the role of microvilli not only helps us appreciate the complexity of our body's systems but also opens avenues for developing interventions for various health conditions related to nutrient absorption and gut health.

微绒毛是从许多上皮细胞表面延伸出的微小指状突起，特别是在肠道和肾脏中。这些结构在增加细胞表面积方面发挥着至关重要的作用，从而允许更多物质的吸收和分泌。术语microvillus（中文释义: 微绒毛）指的是单个突起，而'microvilli'是复数形式。例如，在人类肠道中，microvilli的存在显著增强了营养物质的吸收，因为它提供了更大的表面积与消化食物相互作用。每个microvillus由一组肌动蛋白丝的核心组成，这些丝是细胞骨架的一部分。这个结构不仅支撑着microvillus，还帮助维持其形状和功能。这些丝的排列使得microvilli既稳定又灵活，使它们能够有效地吸收营养，同时适应肠道内容物的运动。除了在吸收中的作用外，microvilli还促进了上皮层的整体健康。它们有助于形成一种保护屏障，保护下方组织免受病原体和毒素的侵害。这种保护功能在肠道中特别重要，因为大量细菌栖息在那里。microvilli的存在有助于选择性吸收有益物质，同时防止有害物质进入血液。对microvilli的研究对理解各种疾病具有重要意义。例如，乳糜泻等病症可能损害microvilli，导致营养物质的吸收不良，并引发一系列健康问题。同样，炎症性肠病也可能影响这些突起的结构和功能。研究人员正在不断调查microvilli如何与不同的饮食成分相互作用，以及如何受到肠道微生物群和药物等因素的影响。此外，显微镜技术的进步使科学家能够以前所未有的细节可视化microvilli。这种增强的理解可以导致新的治疗策略，旨在恢复患者受损的microvilli的完整性和功能。例如，促进microvilli再生的治疗可能改善营养吸收和整体肠道健康。总之，microvilli是增强上皮细胞功能的重要结构，特别是在消化系统中。它们增加吸收表面积、保护有害物质和适应生理变化的能力使它们成为细胞生物学和医学研究的重点。理解microvilli的作用不仅帮助我们欣赏身体系统的复杂性，还为开发与营养吸收和肠道健康相关的各种健康状况的干预措施开辟了途径。