venules

简明释义

英[ˈvɛn.juːlz]美[ˈvɛn.juːlz]

n. 小静脉（venule 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The diameter of the arterioles, venules and capillaries before and after injection were compared. The velocity of the red blood cells and the contrast agents were measured.

比较注射前后小动脉、小静脉及毛细血管内径的变化，测定红细胞与两种造影剂在微循环内的流速。

2.The portion of the circulatory system composed of the smallest vessels, such as the capillaries, arterioles, and venules.

微脉管系统由最小的血管，如毛细血管，小动脉和小静脉等组成的循环系统的一部分。

3.Specialized aggregates of smooth muscle cells found between arterioles and venules are called glomus bodies.

特化的平滑肌细胞聚集于小动脉和小静脉间称为血管球。

4.The muscular venules consisted of a few layers of smooth muscle cells in circle arrangement.

肌性微静脉的中膜由几层环形排列的平滑肌细胞构成。

5.Results: the venography of 18 cases with CIVCS showed that iliac vein was compressed and the collateral venules were formed.

结果：18例先天性髂静脉受压综合征的髂静脉造影表现均为静脉血管受压改变及侧支循环的形成。

6.Capillary: One of the minute blood vessels that connect arterioles and venules.

毛细管：连接动脉和小静脉的纤细的血管中的一条。

7.The structure of venules allows for the exchange of nutrients and waste products between blood and tissues.

小静脉的结构允许血液与组织之间进行营养和废物的交换。

8.In the inflammatory response, the venules become more permeable to allow immune cells to enter the tissue.

在炎症反应中，小静脉变得更加通透，以允许免疫细胞进入组织。

9.The size of the venules can affect blood flow and pressure in the circulatory system.

小静脉的大小可以影响循环系统中的血流和压力。

10.During exercise, the body redirects blood to the venules to help regulate temperature.

在运动期间，身体将血液重定向到小静脉以帮助调节温度。

11.The blood flows from the capillaries into the venules, which are small veins.

血液从毛细血管流入小静脉，它们是小型的静脉。

作文

The human body is a complex network of systems that work together to maintain life. One of the critical components of this system is the circulatory system, which includes the heart, arteries, veins, and a network of smaller vessels. Among these smaller vessels are the venules, which play a vital role in the circulatory process. Understanding the function and importance of venules can provide valuable insights into how our body operates and maintains homeostasis.Venules are small blood vessels that collect blood from capillaries and transport it to larger veins. They are the smallest type of vein in the body, usually measuring less than 1 millimeter in diameter. The structure of venules is crucial for their function; they have thin walls composed of endothelial cells, allowing for the easy exchange of nutrients, waste products, and other substances between the blood and surrounding tissues.The primary function of venules is to facilitate the return of deoxygenated blood back to the heart. After oxygen is delivered to the tissues via the capillaries, the blood begins its journey back. It first enters the venules, where it is collected before moving into larger veins. This process is essential for maintaining proper blood circulation and ensuring that the body's organs receive the oxygen and nutrients they need to function effectively.In addition to their role in blood circulation, venules also play a part in regulating blood flow and pressure. When the body experiences inflammation or injury, the venules can dilate, allowing for increased blood flow to the affected area. This response helps deliver immune cells and nutrients necessary for healing. Conversely, during times of rest or reduced activity, venules can constrict to help maintain blood pressure and redirect blood flow as needed.Moreover, venules are involved in the formation of new blood vessels through a process known as angiogenesis. This is particularly important in situations where tissues require additional blood supply, such as during growth, wound healing, or in response to certain diseases like cancer. The ability of venules to adapt and respond to the body’s needs highlights their significance in maintaining overall health.In conclusion, venules are more than just simple blood vessels; they are integral components of the circulatory system that contribute to various physiological processes. Their ability to collect blood from capillaries, regulate blood flow, and participate in angiogenesis underscores their importance in sustaining life. A deeper understanding of venules not only enhances our knowledge of human anatomy but also emphasizes the intricate balance required for our bodies to function optimally.

人体是一个复杂的系统，各个部分相互协作以维持生命。其中一个关键组成部分是循环系统，包括心脏、动脉、静脉和一系列较小的血管。在这些小血管中，有一种叫做venules的血管，它们在循环过程中扮演着重要角色。理解venules的功能和重要性可以为我们提供有关身体如何运作及维持内环境平衡的宝贵见解。Venules是小型血管，负责从毛细血管收集血液并将其输送到较大的静脉。它们是体内最小的静脉，直径通常小于1毫米。Venules的结构对于其功能至关重要；它们的壁薄，由内皮细胞组成，使得营养物质、废物和其他物质能够轻松地在血液与周围组织之间进行交换。Venules的主要功能是促进去氧血液回流到心脏。氧气通过毛细血管输送到组织后，血液开始返回之旅。它首先进入venules，在这里被收集，然后再流入较大的静脉。这个过程对于维持适当的血液循环至关重要，确保身体的器官获得所需的氧气和营养，以有效地运作。除了在血液循环中的作用外，venules还参与调节血流和血压。当身体经历炎症或受伤时，venules可以扩张，允许更多的血液流向受影响区域。这种反应有助于输送免疫细胞和愈合所需的营养物质。相反，在休息或活动减少的情况下，venules可以收缩，以帮助维持血压并根据需要重新引导血流。此外，venules还参与通过一种称为血管生成的过程形成新血管。这在组织需要额外血液供应的情况下尤为重要，例如在生长、伤口愈合或某些疾病（如癌症）反应中。venules适应并响应身体需求的能力突显了它们在维持整体健康中的重要性。总之，venules不仅仅是简单的血管；它们是循环系统的核心组成部分，参与各种生理过程。它们收集毛细血管的血液、调节血流和参与血管生成的能力强调了它们在维持生命中的重要性。深入理解venules不仅增强了我们对人体解剖的认识，还强调了身体正常运作所需的复杂平衡。