capillary vessel

简明释义

毛细血管

英英释义

例句

1.The exchange of oxygen and carbon dioxide occurs in the capillary vessel (毛细血管) surrounding the alveoli.

氧气和二氧化碳的交换发生在围绕肺泡的capillary vessel (毛细血管) 中。

2.When you get a bruise, it is often due to damage to the capillary vessel (毛细血管) under the skin.

当你出现淤伤时，通常是由于皮肤下的capillary vessel (毛细血管) 受损所致。

3.In the human body, the capillary vessel (毛细血管) plays a crucial role in delivering oxygen to tissues.

在人体中，capillary vessel (毛细血管) 在向组织输送氧气方面起着至关重要的作用。

4.The capillary vessel (毛细血管) network in the skin helps regulate body temperature by allowing blood to flow close to the surface.

皮肤中的capillary vessel (毛细血管) 网络通过允许血液流近表面来帮助调节体温。

5.Nutrients from digested food are absorbed into the bloodstream through the capillary vessel (毛细血管) in the intestinal walls.

消化食物中的营养物质通过肠壁的capillary vessel (毛细血管) 被吸收到血液中。

作文

The human body is an intricate network of systems that work together to sustain life. One of the most essential components of this system is the circulatory system, which is responsible for transporting blood, nutrients, and oxygen throughout the body. Within this system, there are various types of blood vessels, including arteries, veins, and the often-overlooked capillary vessel. These tiny blood vessels play a crucial role in the overall functioning of our bodies.Capillary vessels (毛细血管) are the smallest and thinnest blood vessels in the body, measuring just one cell thick. They connect the arterioles, which are small branches of arteries, to venules, which are small branches of veins. This unique structure allows for the efficient exchange of substances between the blood and surrounding tissues. As blood flows through the capillary vessels (毛细血管), oxygen and nutrients are delivered to cells while carbon dioxide and waste products are removed. This process is vital for maintaining cellular health and function.The permeability of capillary vessels (毛细血管) varies depending on their location in the body. For instance, in the lungs, the capillary vessels (毛细血管) are designed to facilitate gas exchange, allowing oxygen to enter the bloodstream while carbon dioxide is expelled. In contrast, the capillary vessels (毛细血管) in the kidneys are specialized for filtering blood and removing waste products. This adaptability highlights the importance of capillary vessels (毛细血管) in different physiological processes.Moreover, the health of capillary vessels (毛细血管) is critical for overall well-being. Conditions such as diabetes can lead to damage of these tiny blood vessels, resulting in complications like diabetic retinopathy, where vision is impaired due to damage in the capillary vessels (毛细血管) of the retina. Similarly, hypertension can cause the walls of capillary vessels (毛细血管) to thicken, reducing their ability to transport blood effectively.In addition to their physiological roles, capillary vessels (毛细血管) also have significant implications in medical research and treatment. Scientists study these vessels to understand various diseases better and develop targeted therapies. For instance, the formation of new capillary vessels (毛细血管) — a process known as angiogenesis — is a key area of research in cancer treatment, as tumors often require a supply of blood to grow and metastasize.In conclusion, capillary vessels (毛细血管) are indispensable components of the circulatory system, facilitating vital exchanges between blood and tissues. Their unique structure and function make them essential for maintaining health and supporting various physiological processes. Understanding the role of capillary vessels (毛细血管) not only sheds light on the complexities of human biology but also underscores the importance of maintaining vascular health to prevent disease and promote overall well-being. As we continue to explore the intricacies of our bodies, the significance of capillary vessels (毛细血管) will undoubtedly remain a focal point in both scientific research and medical practice.

人体是一个复杂的系统网络，各个系统共同作用以维持生命。其中，循环系统是最重要的组成部分之一，负责将血液、营养物质和氧气运输到全身。在这个系统中，有多种类型的血管，包括动脉、静脉以及常被忽视的毛细血管。这些微小的血管在我们身体的整体功能中发挥着至关重要的作用。毛细血管是体内最小、最薄的血管，厚度仅为一层细胞。它们连接动脉的小分支（小动脉）和静脉的小分支（小静脉）。这种独特的结构使得血液与周围组织之间的物质交换得以高效进行。当血液流经毛细血管时，氧气和营养物质被输送到细胞，同时二氧化碳和废物被移除。这一过程对于维持细胞健康和功能至关重要。毛细血管的通透性因其在体内的位置而异。例如，在肺部，毛细血管设计用于促进气体交换，使氧气进入血液，而二氧化碳被排出。相反，肾脏中的毛细血管则专门用于过滤血液和去除废物。这种适应性突显了毛细血管在不同生理过程中的重要性。此外，毛细血管的健康对整体健康至关重要。糖尿病等疾病可能导致这些微小血管的损伤，从而引发如糖尿病视网膜病变等并发症，影响视力，因为视网膜中的毛细血管受到损害。同样，高血压可能导致毛细血管的壁增厚，减少其有效运输血液的能力。除了生理作用外，毛细血管在医学研究和治疗中也具有重要意义。科学家研究这些血管以更好地理解各种疾病并开发针对性治疗。例如，新毛细血管的形成——称为血管生成——是癌症治疗研究的关键领域，因为肿瘤通常需要血液供应才能生长和转移。总之，毛细血管是循环系统不可或缺的组成部分，促进血液与组织之间的重要交换。它们独特的结构和功能使其对维持健康和支持各种生理过程至关重要。理解毛细血管的作用不仅揭示了人类生物学的复杂性，还强调了保持血管健康以预防疾病和促进整体健康的重要性。随着我们继续探索身体的复杂性，毛细血管的重要性无疑将继续成为科学研究和医学实践的焦点。