arterioles

简明释义

英[/ˌɑːtəˈrɪəlz/]美[/ˌɑrtəˈriəlz/]

n. [解剖]小动脉；细动脉（arteriole 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Objective:To assess the value of applying superficial veins to arterioles to rebuild blood supply in the replantation of severed distal finger segments.

目的：探讨浅静脉动脉化重建血运在末节断指再植中的应用价值。

2.The process begins with brief contraction of nearby arterioles.

其过程始于组织受损的邻近小动脉的收缩。

3.Aim: To study the effect of chronic hypoxic hypercapnia on expression of COX-2 mRNA in pulmonary arterioles.

目的：研究慢性低氧高二氧化碳对大鼠肺动脉环氧酶- 2 (COX - 2)基因表达的影响。

4.Conclusions: in CADASIL long penetrating arterioles or branches supplying subcortical structures are obliterated and their walls are thickened.

结论：患者供应皮质下结构的长穿动脉或分支动脉结构紊乱，血管壁增厚。

5.These arteries branch and re branch to form arterioles.

这些动脉又一再分支形成小动脉。

6.Arteries carry the blood from the heart to the narrowest arteries, or arterioles, which then lead into the capillaries.

动脉把来自心脏的血液送到最狭窄的动脉，也就是微动脉，然后再送到微血管。

7.Objective To show dose-dependent effect of glyceryl trinitrate (GTN) on conduit arteries, resistive arterioles, and capacitive veins using noninvasive pulse wave analysis.

目的用无创脉搏波分析方法揭示硝酸甘油（GTN）对不同特性血管的剂量依赖效应。

8.High blood pressure can damage the walls of the arterioles over time.

高血压会随着时间的推移损害小动脉的壁。

9.When exercising, the arterioles dilate to increase blood flow to the muscles.

在锻炼时，小动脉会扩张以增加流向肌肉的血流。

10.The blood flow to the tissues is regulated by the contraction and relaxation of the arterioles.

血液流向组织的调节由小动脉的收缩和放松控制。

11.Certain medications can help relax the arterioles and lower blood pressure.

某些药物可以帮助放松小动脉并降低血压。

12.In response to cold temperatures, the arterioles constrict to preserve body heat.

在寒冷的温度下，小动脉收缩以保持体温。

作文

The human body is a complex and intricate system, where every component plays a vital role in maintaining overall health and functionality. Among these components, the blood vessels are crucial for transporting blood throughout the body, and within this system, the smallest branches of arteries, known as arterioles (小动脉), hold significant importance. Understanding the role of arterioles (小动脉) can provide insight into how our circulatory system operates and why it is essential for our well-being.Arterioles are tiny blood vessels that lead from the larger arteries to the capillaries. They play a key role in regulating blood flow and blood pressure. The walls of arterioles (小动脉) are composed of smooth muscle cells that can contract and relax. This ability to change diameter allows arterioles (小动脉) to control the amount of blood that reaches different tissues in the body. When the body requires more oxygen or nutrients, such as during exercise, the arterioles (小动脉) dilate, allowing increased blood flow to those areas.Conversely, when the body is at rest, arterioles (小动脉) constrict to reduce blood flow to less active regions. This dynamic regulation is essential for maintaining homeostasis, ensuring that all organs receive adequate blood supply based on their metabolic needs.Moreover, arterioles (小动脉) are also involved in the process of thermoregulation. For instance, when the body is exposed to cold temperatures, the arterioles (小动脉) constrict to minimize heat loss, while in hot conditions, they dilate to promote heat dissipation. This physiological response is crucial for maintaining a stable internal environment, which is necessary for optimal functioning of the body's systems.In addition to their role in blood flow regulation, arterioles (小动脉) are also significant in the context of disease. Conditions such as hypertension (high blood pressure) can lead to changes in the structure and function of arterioles (小动脉). Chronic high blood pressure can cause the walls of arterioles (小动脉) to thicken, resulting in reduced elasticity and impaired ability to regulate blood flow. This can create a vicious cycle, where the inability to properly manage blood pressure further exacerbates cardiovascular issues.Furthermore, diabetes can also impact the health of arterioles (小动脉). High blood sugar levels can damage the endothelial cells lining the arterioles (小动脉), leading to complications such as poor circulation and increased risk of heart disease. Therefore, maintaining healthy arterioles (小动脉) is crucial for preventing chronic diseases and promoting longevity.In conclusion, arterioles (小动脉) are vital components of the circulatory system, playing critical roles in regulating blood flow, maintaining blood pressure, and supporting overall health. A deeper understanding of arterioles (小动脉) can enhance our appreciation for the complexity of the human body and underline the importance of cardiovascular health. By taking care of our vascular system through proper diet, exercise, and regular medical check-ups, we can ensure that our arterioles (小动脉) remain healthy and functional, contributing to our overall quality of life.

人体是一个复杂而精密的系统，每个组成部分在维持整体健康和功能方面都发挥着至关重要的作用。在这些组成部分中，血管对于将血液输送到全身至关重要，而在这个系统中，称为小动脉（arterioles）的动脉最小分支具有重要意义。理解小动脉（arterioles）的作用可以让我们深入了解循环系统的运作方式以及其对我们健康的重要性。小动脉（arterioles）是从较大动脉通向毛细血管的小血管。它们在调节血流和血压方面发挥着关键作用。小动脉（arterioles）的壁由平滑肌细胞构成，这些细胞能够收缩和放松。这种改变直径的能力使得小动脉（arterioles）能够控制到达身体不同组织的血液量。当身体需要更多氧气或营养物质时，例如在运动期间，小动脉（arterioles）会扩张，允许更多的血液流向这些区域。相反，当身体处于休息状态时，小动脉（arterioles）会收缩，以减少对不太活跃区域的血流。这种动态调节对于维持体内平衡至关重要，确保所有器官根据其代谢需求获得足够的血液供应。此外，小动脉（arterioles）还参与热调节过程。例如，当身体暴露在寒冷环境中时，小动脉（arterioles）会收缩以最小化热量损失，而在炎热条件下，它们则会扩张以促进散热。这种生理反应对于维持稳定的内部环境至关重要，这是身体系统最佳功能所必需的。除了在血流调节中的作用外，小动脉（arterioles）在疾病背景下也很重要。高血压等病症可能导致小动脉（arterioles）的结构和功能发生变化。长期高血压会导致小动脉（arterioles）的壁增厚，导致弹性降低和调节血流能力受损。这可能形成恶性循环，无法妥善管理血压进一步加剧心血管问题。此外，糖尿病还会影响小动脉（arterioles）的健康。高血糖水平可能损害小动脉（arterioles）内衬的内皮细胞，导致循环不良和心脏病风险增加等并发症。因此，保持健康的小动脉（arterioles）对于预防慢性疾病和促进长寿至关重要。总之，小动脉（arterioles）是循环系统的重要组成部分，在调节血流、维持血压和支持整体健康方面发挥着关键作用。更深入地了解小动脉（arterioles）可以增强我们对人体复杂性的欣赏，并强调心血管健康的重要性。通过适当的饮食、锻炼和定期体检，我们可以确保我们的小动脉（arterioles）保持健康和功能正常，从而提升我们的整体生活质量。