epiderm

简明释义

英[/ˈɛpɪdɜrm/]美[/ˈɛpɪdɜrm/]

n. 表皮

英英释义

单词用法

同义词

反义词

例句

1.The structure of epiderm combined with middle layer is advantageous to the conveyance and storage of nutrient substance;

中层细胞与表皮细胞的紧密结合有利于物质的运输与贮存；

2.The structure of epiderm combined with middle layer is advantageous to the conveyance and storage of nutrient substance;

中层细胞与表皮细胞的紧密结合有利于物质的运输与贮存；

3.Objective To investigate the therapeutic effect of APL on epiderm proliferation of psoriasis-like model of guinea pig.

目的观察置换肽（A PL）对豚鼠银屑病样模型表皮增殖的治疗作用。

4.Close surface, soft texture, well compatible with epiderm cell, enjoy incomparable comfortable feeling.

表面细腻，质感柔软，能与表皮细胞很好的相容，给你无与伦比的舒服感觉。

5.The secondary structure of rhizome include epiderm, cortex and vascular tissue, pith ray is developed.

根状茎的次生结构由外向内为表皮，皮层和维管柱，髓射线发达。

6.The outer layer of skin, known as the epiderm, provides a protective barrier against environmental hazards.

皮肤的外层被称为表皮，提供了对环境危害的保护屏障。

7.In dermatology, understanding the structure of the epiderm is crucial for diagnosing skin conditions.

在皮肤科，了解表皮的结构对诊断皮肤病至关重要。

8.The epiderm regenerates itself every few weeks, which is essential for maintaining healthy skin.

表皮每几周就会再生一次，这对保持皮肤健康至关重要。

9.Certain skincare products are designed to penetrate the epiderm and deliver active ingredients deep into the skin.

某些护肤产品旨在渗透到表皮中，将活性成分深层输送到皮肤内。

10.Sun exposure can damage the epiderm, leading to premature aging and skin cancer.

阳光暴露会损害表皮，导致过早衰老和皮肤癌。

作文

The human body is an intricate system composed of various layers and structures, each serving a unique purpose. Among these, the outermost layer is known as the epiderm, which plays a crucial role in protecting the body from external elements. The epiderm is the first line of defense against pathogens, chemicals, and physical abrasions. It acts as a barrier that prevents harmful substances from penetrating deeper into the body, thereby maintaining overall health and well-being. The epiderm is primarily made up of keratinocytes, which are cells that produce keratin, a protein that provides strength and resilience to the skin. This layer is continuously renewing itself; old cells are shed off while new cells are generated from the deeper layers of the skin. This process is essential for the maintenance of healthy skin and is influenced by various factors, including age, environmental conditions, and overall health. One of the remarkable features of the epiderm is its ability to adapt to different environments. For instance, when exposed to harsh sunlight, the epiderm increases melanin production to protect against UV radiation. This adaptation not only helps to prevent skin damage but also plays a role in regulating body temperature through sweat production. Moreover, the epiderm contains specialized cells such as melanocytes, which are responsible for pigment production, and Langerhans cells, which play a role in the immune response. These cells work together to ensure that the skin remains healthy and capable of responding to external threats. An imbalance or dysfunction in the epiderm can lead to various skin conditions, ranging from mild irritations to severe diseases like psoriasis or eczema. In addition to its protective functions, the epiderm also contributes to the sensory perception of touch, pressure, and temperature. The presence of nerve endings within the epiderm allows us to experience sensations that are vital for interacting with our environment. This sensory feedback is crucial for survival, as it helps us react to potential dangers, such as extreme heat or sharp objects. Maintaining the health of the epiderm is essential for overall well-being. Proper skincare, hydration, and protection from harmful environmental factors can help preserve its integrity. Regular exfoliation can aid in the removal of dead skin cells, promoting a fresh and vibrant appearance. Additionally, using sunscreen can protect the epiderm from the damaging effects of UV rays, reducing the risk of skin cancer and premature aging. In conclusion, the epiderm is more than just a protective layer; it is a dynamic and essential component of our body that plays a significant role in our health. Understanding the importance of the epiderm and taking steps to care for it can lead to healthier skin and a better quality of life. As we continue to learn more about the complexities of the skin, it becomes increasingly clear that the epiderm is vital not only for physical protection but also for our overall sense of well-being.

人体是一个复杂的系统，由各种层次和结构组成，每个部分都发挥着独特的作用。在这些层次中，最外层被称为表皮，它在保护身体免受外部因素方面发挥着至关重要的作用。表皮是抵御病原体、化学物质和物理磨损的第一道防线。它充当了一道屏障，防止有害物质渗透到身体更深处，从而维持整体健康和幸福。 表皮主要由角质形成细胞组成，这些细胞产生角蛋白，这是一种为皮肤提供强度和韧性的蛋白质。这一层不断自我更新；旧细胞被剥落，而新细胞则从皮肤的深层生成。这个过程对于健康皮肤的维护至关重要，并受到多种因素的影响，包括年龄、环境条件和整体健康状况。 表皮的一个显著特点是其适应不同环境的能力。例如，当暴露在强烈阳光下时，表皮会增加黑色素的产生，以保护皮肤免受紫外线辐射。这种适应不仅有助于防止皮肤损伤，还通过出汗调节体温。 此外，表皮还含有特殊细胞，如黑色素细胞，负责色素的产生，以及朗格汉斯细胞，参与免疫反应。这些细胞协同工作，确保皮肤保持健康并能够应对外部威胁。表皮中的失衡或功能障碍可能导致各种皮肤疾病，从轻微刺激到严重疾病，如银屑病或湿疹。 除了保护功能外，表皮还促进触觉、压力和温度的感知。表皮内神经末梢的存在使我们能够体验对与环境互动至关重要的感觉。这种感官反馈对生存至关重要，因为它帮助我们对潜在危险做出反应，例如极端高温或尖锐物体。 维护表皮的健康对于整体幸福至关重要。适当的护肤、补水和保护免受有害环境因素的影响可以帮助保持其完整性。定期去角质可以帮助去除死皮细胞，促进新鲜和充满活力的外观。此外，使用防晒霜可以保护表皮免受紫外线的损害，减少皮肤癌和衰老的风险。 总之，表皮不仅仅是一个保护层；它是我们身体的一个动态和必不可少的组成部分，在我们的健康中发挥着重要作用。理解表皮的重要性并采取措施来呵护它，可以促进皮肤的健康，提高生活质量。随着我们对皮肤复杂性的了解不断加深，表皮在身体保护和整体幸福感方面的重要性愈发明显。