epithelial

简明释义

英[ˌepɪˈθiːlɪəl]美[ˌepɪˈθilɪəl]

adj. [生物] 上皮的；皮膜的

英英释义

单词用法

同义词

反义词

例句

1.Objective To study the expression and significance of fibronectin in epithelial carcinoma of ovary.

目的探讨纤连蛋白在上皮性卵巢癌的表达及意义。

2.Recent studies have shown lipoplexes to be useful in transfecting respiratory epithelial cells.

最近的研究表明脂质体在转染呼吸道上皮细胞中是有用的。

3.These skin particles are groups of epithelial cells .

这些碎屑为皮膜细胞的集合体。

4.Theoretically, clearance of the remaining lens epithelial cells within the capsular bag with medicine is the most effective way to prevent PCO.

理论上说，使用药物彻底清除残留于晶状体囊袋内的晶状体上皮细胞将是预防后发性白内障最直接的方法。

5.Objective: To establish a method of in vitro cultivation of epithelial cells of keratocystic odontogenic tumors.

目的：建立牙源性角化囊性瘤上皮细胞体外培养体系并进行初步鉴定。

6.Methods Sweat glands epithelial cells were collected by enzymatic digestion.

方法酶消化法培养人汗腺上皮细胞。

7.The human body has several types of epithelial 上皮 tissues that serve different functions.

人类身体有几种类型的上皮组织，具有不同的功能。

8.In the lungs, epithelial 上皮 cells help in the exchange of gases.

在肺部，上皮细胞帮助气体交换。

9.The epithelial 上皮 layer protects the underlying tissues from damage.

上皮层保护下层组织免受损伤。

10.Certain diseases can affect the epithelial 上皮 cells, leading to various health issues.

某些疾病可以影响上皮细胞，导致各种健康问题。

11.The epithelial 上皮 tissue in the intestines is specialized for absorption.

肠道中的上皮组织专门用于吸收。

作文

The human body is a complex organism made up of various types of tissues, each serving specific functions that are essential for maintaining life. Among these tissues, one of the most crucial is the epithelial (上皮的) tissue. This type of tissue covers the surfaces of the body, both inside and out, playing a vital role in protection, absorption, secretion, and sensation. Understanding the structure and function of epithelial (上皮的) tissue is fundamental to comprehending how our body operates and responds to different stimuli. Epithelial tissue can be classified into various types based on cell shape and arrangement. The primary shapes include squamous (flat), cuboidal (cube-shaped), and columnar (tall and column-like). Additionally, the arrangement of these cells can be simple (a single layer) or stratified (multiple layers). Each type of epithelial (上皮的) tissue has distinct characteristics that enable it to perform its specific functions effectively. For instance, simple squamous epithelial (上皮的) tissue is found in areas where rapid diffusion or filtration is necessary, such as the alveoli in the lungs and the lining of blood vessels. Its thinness allows for easy passage of gases and nutrients. On the other hand, stratified squamous epithelial (上皮的) tissue, which consists of multiple layers of cells, provides protection against abrasion and is found in areas like the skin and the lining of the mouth. One of the remarkable features of epithelial (上皮的) tissue is its ability to regenerate quickly. This is particularly important in areas subject to wear and tear, such as the skin. When the skin is injured, epithelial (上皮的) cells rapidly divide to heal the wound, restoring the protective barrier of the body. This regenerative capacity is a defining characteristic that distinguishes epithelial (上皮的) tissue from other types of tissues in the body. In addition to protection and regeneration, epithelial (上皮的) tissue plays a key role in secretion and absorption. Glandular epithelial (上皮的) tissue forms the glands of the body, which are responsible for producing hormones, enzymes, and other substances necessary for bodily functions. For example, the pancreas contains exocrine glands that secrete digestive enzymes into the small intestine, while endocrine glands, such as the thyroid, release hormones directly into the bloodstream. Furthermore, epithelial (上皮的) tissue is involved in sensory perception. Specialized epithelial cells, such as those found in the taste buds and olfactory epithelium, are responsible for detecting stimuli and transmitting signals to the nervous system. This highlights the versatility of epithelial (上皮的) tissue, as it not only serves as a protective barrier but also facilitates interaction with the environment. In conclusion, epithelial (上皮的) tissue is an integral component of the human body, contributing to a variety of essential functions such as protection, absorption, secretion, and sensation. Its unique structural characteristics allow it to adapt to different roles, making it indispensable for maintaining homeostasis. A deeper understanding of epithelial (上皮的) tissue can provide valuable insights into various medical conditions and the overall health of individuals. As research continues to uncover the complexities of this tissue type, we gain a better appreciation for the intricate systems that sustain life.

人体是一个复杂的有机体，由多种类型的组织组成，每种组织都承担着维持生命所必需的特定功能。在这些组织中，最重要的之一是上皮的组织。这种类型的组织覆盖了身体的表面，包括内部和外部，在保护、吸收、分泌和感觉方面发挥着至关重要的作用。理解上皮的组织的结构和功能对于理解我们身体如何运作以及如何对不同刺激作出反应是基础。 上皮的组织可以根据细胞形状和排列方式进行分类。主要的形状包括鳞状（扁平）、立方（立方体形状）和柱状（高而像柱子）。此外，这些细胞的排列可以是单层（单层）或多层（多层）。每种类型的上皮的组织都有独特的特征，使其能够有效地执行特定功能。 例如，简单鳞状上皮的组织存在于快速扩散或过滤所需的区域，如肺泡和血管内衬。其薄度允许气体和营养物质的轻松通过。另一方面，分层鳞状上皮的组织由多层细胞组成，提供对磨损的保护，存在于皮肤和口腔内衬等区域。 上皮的组织的一个显著特征是其快速再生的能力。这在受到磨损和撕裂的区域尤其重要，例如皮肤。当皮肤受伤时，上皮的细胞迅速分裂以愈合伤口，恢复身体的保护屏障。这种再生能力是区分上皮的组织与身体其他类型组织的定义特征。 除了保护和再生外，上皮的组织在分泌和吸收方面也发挥着关键作用。腺体上皮的组织形成了身体的腺体，负责产生激素、酶和其他必要的物质。例如，胰腺含有外分泌腺，将消化酶分泌到小肠，而内分泌腺，如甲状腺，则直接将激素释放到血液中。 此外，上皮的组织还参与感官感知。专门的上皮的细胞，如味蕾和嗅觉上皮的细胞，负责检测刺激并将信号传递给神经系统。这突显了上皮的组织的多样性，因为它不仅作为保护屏障，还促进与环境的互动。 总之，上皮的组织是人体的重要组成部分，为保护、吸收、分泌和感觉等多种基本功能做出贡献。其独特的结构特征使其能够适应不同的角色，使其对维持体内平衡不可或缺。深入了解上皮的组织可以为各种医学状况和个体的整体健康提供有价值的见解。随着研究不断揭示这一组织类型的复杂性，我们对维持生命的复杂系统有了更好的认识。