epithelium

简明释义

英[ˌepɪˈθiːlɪəm]美[ˌepəˈθilɪəm]

n. 上皮；上皮细胞

复 数 e p i t h e l i a 或 e p i t h e l i u m s

英英释义

单词用法

同义词

反义词

例句

1.The distribution of positive cells in bladder cancer tissue was mainly localization in the surface of epithelium.

阳性细胞在膀胱癌组织中的分布主要在上皮表层。

2.Objective:To investigate the activation of cryopreserved corneal limbus epithelium on the upper parts of amnion and the effect of hetero grafting.

目的：探讨深低温冷冻保存角膜缘干细胞羊膜片的活性及异体移植疗效。

3.Objective To study the method in pterygium excision with lower recurrent rate and rapid corneal epithelium reconstruction.

目的寻找术后复发率低，角膜上皮修复快，简单易行的翼状胬肉手术方法。

4.The destructive and malignant neoplasms of chorionic epithelium often arise from hydatidiform moles.

破坏性和恶性的绒毛膜上皮癌往往是葡萄胎所引起。

5.The surfactant-like multilamellar bodies were identified in the epithelium on the lateral wall and maxillary sinus.

下鼻甲、中鼻甲、钩突、上颌窦和腺样体粘膜均有表面活性物质样板层体的存在。

6.Thus we find that they, too, arise from an epithelium.

因此我们发现，它们也起源于上皮组织。

7.Using micropipette, the taste buds were successfully isolated from rat tongue epithelium and then placed on LAPS chip.

采用微吸管吸取技术，我们体外分离出大鼠的味蕾，将其培养在LAPS芯片上。

8.The ulcer base at the left shows loss of overlying squamous epithelium with only necrotic debris remaining.

左边溃疡基底面缺少鳞状上皮仅存有坏死的碎片。

9.Conclusion Limbal epithelium autograft and using 5-fu is effective treatment of pterygium.

结论自体角膜缘上皮移植联合5氟脲嘧啶治疗是治疗胬肉的良好方法。

10.The outer layer of skin is made up of a protective layer of epithelium.

皮肤的外层由一层保护性的上皮构成。

11.In the respiratory system, the epithelium helps filter and humidify the air we breathe.

在呼吸系统中，上皮帮助过滤和湿润我们呼吸的空气。

12.The intestinal epithelium plays a crucial role in nutrient absorption.

肠道的上皮在营养吸收中起着至关重要的作用。

13.Cancer can originate in the epithelium of various organs.

癌症可以起源于各种器官的上皮。

14.The epithelium in the urinary tract helps protect against infections.

尿道中的上皮有助于防止感染。

作文

The human body is a complex and intricate system, composed of various types of cells that perform a multitude of functions. Among these cells, the most important are those that form the epithelium (上皮组织), which serves as a protective barrier and plays a critical role in various physiological processes. The epithelium (上皮组织) can be found lining the surfaces of organs, both internal and external, and it is essential for maintaining homeostasis within the body. One of the primary functions of the epithelium (上皮组织) is to provide protection against physical, chemical, and biological insults. For instance, the skin is the largest organ of the body, and its outer layer is composed of stratified squamous epithelium (上皮组织). This type of epithelium (上皮组织) is designed to withstand abrasion and prevent pathogens from entering the body. Similarly, the lining of the gastrointestinal tract consists of simple columnar epithelium (上皮组织), which not only protects underlying tissues but also aids in nutrient absorption and secretion of digestive enzymes. In addition to its protective functions, the epithelium (上皮组织) is involved in secretion and absorption. Glandular epithelium (上皮组织) is specialized for producing and releasing substances such as hormones, mucus, and enzymes. For example, the pancreas contains both endocrine and exocrine glands, each composed of different types of epithelium (上皮组织) that perform distinct roles in digestion and metabolism. The ability of the epithelium (上皮组织) to absorb nutrients is particularly evident in the small intestine, where microvilli increase the surface area for maximum absorption. Moreover, the epithelium (上皮组织) plays a vital role in sensation. Certain types of epithelium (上皮组织), such as those found in the nasal cavity and taste buds, contain sensory receptors that allow the body to perceive environmental stimuli. This sensory function is crucial for survival, enabling organisms to respond to changes in their surroundings. The regeneration of epithelium (上皮组织) is another remarkable aspect of its biology. Unlike many other tissues, the epithelium (上皮组织) has a high turnover rate, meaning it can quickly heal and replace damaged cells. This regenerative capability is particularly important in areas subject to constant wear and tear, such as the skin and the lining of the gut. When injuries occur, stem cells located in the basal layer of the epithelium (上皮组织) are activated to proliferate and differentiate, restoring the integrity of the tissue. In conclusion, the epithelium (上皮组织) is a fundamental component of the human body, serving multiple critical roles including protection, secretion, absorption, sensation, and regeneration. Understanding the structure and function of the epithelium (上皮组织) is essential for comprehending how the body maintains its health and responds to injury. As research continues to uncover the complexities of this vital tissue, it becomes increasingly clear that the epithelium (上皮组织) is not merely a passive barrier but an active participant in the body's overall functioning.

人体是一个复杂而精密的系统，由各种细胞组成，这些细胞执行多种功能。在这些细胞中，最重要的是形成上皮组织（epithelium）的细胞，它作为保护屏障，并在各种生理过程中发挥关键作用。上皮组织（epithelium）可以在器官的内外表面找到，对于维持身体内的稳态至关重要。 上皮组织（epithelium）的主要功能之一是提供对物理、化学和生物损害的保护。例如，皮肤是人体最大的器官，其外层由分层鳞状上皮组织（epithelium）组成。这种类型的上皮组织（epithelium）旨在承受磨损并防止病原体进入身体。同样，胃肠道的内衬由简单柱状上皮组织（epithelium）组成，不仅保护下方的组织，还帮助营养吸收和消化酶的分泌。 除了保护功能外，上皮组织（epithelium）还参与分泌和吸收。腺体上皮组织（epithelium）专门用于产生和释放如激素、粘液和酶等物质。例如，胰腺包含内分泌和外分泌腺，各自由不同类型的上皮组织（epithelium）组成，在消化和代谢中发挥不同的作用。上皮组织（epithelium）吸收营养的能力在小肠中尤为明显，微绒毛增加了最大吸收的表面积。 此外，上皮组织（epithelium）在感觉中也发挥着重要作用。某些类型的上皮组织（epithelium），例如鼻腔和味蕾中的那些，含有感官受体，使身体能够感知环境刺激。这种感觉功能对生存至关重要，使生物能够对周围环境的变化做出反应。 上皮组织（epithelium）的再生是其生物学的另一个显著方面。与许多其他组织不同，上皮组织（epithelium）具有较高的周转率，这意味着它可以快速愈合和替换受损细胞。这种再生能力在不断磨损的区域尤为重要，例如皮肤和肠道内衬。当发生损伤时，位于上皮组织（epithelium）基底层的干细胞被激活以增殖和分化，恢复组织的完整性。 总之，上皮组织（epithelium）是人体的基本组成部分，执行多种关键角色，包括保护、分泌、吸收、感觉和再生。理解上皮组织（epithelium）的结构和功能对于理解身体如何维持健康和应对损伤至关重要。随着研究继续揭示这种重要组织的复杂性，越来越清楚的是，上皮组织（epithelium）不仅仅是一个被动屏障，而是身体整体功能的积极参与者。