vasodilation

简明释义

英[ˌveɪzəʊdaɪˈleɪʃn]美[ˌveɪzoʊdaɪˈleɪʃn]

n. 血管舒张

英英释义

单词用法

同义词

反义词

例句

1.AD usually causes a headache due to vasodilation of brain blood vessels.

广告通常会导致头痛，由于脑血管舒张血管。

2.Thiazides cause vasodilation by activating calcium-activated potassium channels in vascular smooth muscles and inhibiting various carbonic anhydrases in vascular tissue.

噻嗪类药激活由钙激活的血管平滑肌钾通道，抑制血管组织中的各种碳酸酐酶。

3.They reduce blood pressure through vasodilation and reduction of blood volume.

血管紧张素转换酶抑制剂通过舒张血管和减少血容量而降血压。

4.It is a natural antibiotic and cleanser rich in bioflavonoids. The active ingredients of ginkgo leaf improve circulation and vasodilation.

这是一个自然抗生素和清洁剂，含有丰富的生物类黄酮，能促进身体血液循环和血管舒张。

5.CONCLUSION: NTG nebulization produces a selective pulmonary vasodilation either during or after the exposure of hypoxia and improves myocardial impairment in acute hypoxic newborn piglets.

结论：缺氧同时或缺氧后雾化吸入NTG均能选择性地降低急性低氧引起的肺动脉高压，对心肌也有一定的保护作用。

6.Vasodilation: leads to greater blood flow to the area of inflammation, resulting in redness and heat.

血管扩张：炎症灶血流量增加使得局部红、热。

7.Distributive shock: Distributive shock results from a relative inadequacy of intravascular volume caused by arterial or venous vasodilation;

分布性休克： 分布性休克源于因动脉或静脉扩张引起的血管内容量的相对不足，其循环血量正常。

8.The purpose of this study was to explore the effects of walking on the serum adiponec- tin and endothelium-dependent vasodilation in patients with impaired glucose tolerance (IGT).

目的：探讨健步走运动锻炼对糖耐量减低（IGT）患者血清脂联素、内皮依赖性血管舒张功能的影响。

9.Objective To evaluate the role of endothelium-derived hyperpolarizing factor (EDHF) in flow-dependent coronary vasodilation induced by reactive hyperemia (RH).

目的评价内皮衍生超极化因子（EDHF）在血流介导性冠状动脉反应性充血扩张中的作用。

10.Certain medications induce vasodilation to help lower blood pressure.

某些药物会诱发血管扩张以帮助降低血压。

11.During exercise, the body undergoes vasodilation to increase blood flow to the muscles.

在运动过程中，身体会经历血管扩张以增加流向肌肉的血液流量。

12.When you are hot, your body uses vasodilation to release heat through the skin.

当你感到热时，身体会利用血管扩张通过皮肤释放热量。

13.In response to inflammation, the body may trigger vasodilation to allow more immune cells to reach the affected area.

作为对炎症的反应，身体可能会触发血管扩张，以允许更多免疫细胞到达受影响区域。

14.The application of heat can cause vasodilation, leading to a feeling of warmth in the skin.

热敷可以引起血管扩张，使皮肤感到温暖。

作文

Vasodilation is a physiological process that plays a crucial role in regulating blood flow and maintaining homeostasis within the body. It refers to the widening of blood vessels, which occurs when the smooth muscle cells in the vessel walls relax. This process is essential for various bodily functions, including thermoregulation, the delivery of oxygen and nutrients to tissues, and the removal of metabolic waste. Understanding vasodilation (血管扩张) is vital for comprehending how our bodies respond to different stimuli, such as exercise, heat, and stress.When we engage in physical activity, our muscles require more oxygen and nutrients to sustain their increased metabolic demands. In response, the body initiates vasodilation (血管扩张) in the blood vessels supplying these muscles. This widening of the vessels allows for an increased blood flow, ensuring that the necessary resources reach the active tissues. Additionally, vasodilation (血管扩张) helps to dissipate heat generated during exercise, preventing overheating and maintaining optimal body temperature.Another important aspect of vasodilation (血管扩张) is its role in the inflammatory response. When tissues are injured or infected, inflammatory mediators such as histamine and prostaglandins are released. These substances promote vasodilation (血管扩张), leading to increased blood flow to the affected area. This enhanced circulation brings immune cells to the site of injury, facilitating the healing process. However, excessive vasodilation (血管扩张) can contribute to conditions such as edema, where fluid accumulates in tissues, causing swelling and discomfort.Moreover, the regulation of vasodilation (血管扩张) is influenced by various factors, including neural and hormonal signals. The autonomic nervous system plays a significant role in modulating blood vessel diameter. For instance, during times of stress, the sympathetic nervous system can induce vasodilation (血管扩张) in certain vascular beds while constricting others, effectively redirecting blood flow to vital organs like the heart and brain.Hormones such as nitric oxide, adrenaline, and angiotensin II also impact vasodilation (血管扩张). Nitric oxide, for example, is a potent vasodilator produced by endothelial cells lining the blood vessels. It diffuses into the smooth muscle cells and promotes relaxation, leading to vasodilation (血管扩张). On the other hand, angiotensin II primarily causes vasoconstriction but can also induce vasodilation (血管扩张) under specific conditions, highlighting the complex interplay between different regulatory mechanisms.In conclusion, vasodilation (血管扩张) is a fundamental physiological process that enables the body to adapt to various challenges and maintain overall health. Its significance extends beyond mere blood flow regulation; it is integral to processes such as thermoregulation, inflammation, and tissue repair. A comprehensive understanding of vasodilation (血管扩张) not only sheds light on normal bodily functions but also informs medical practices related to cardiovascular health, exercise physiology, and the treatment of inflammatory conditions. As research continues to uncover the intricacies of this process, the importance of vasodilation (血管扩张) in promoting wellness and preventing disease becomes increasingly evident.

血管扩张是一个生理过程，在调节血流和维持身体内稳态方面起着至关重要的作用。它指的是血管的扩张，当血管壁中的平滑肌细胞放松时就会发生这种情况。这个过程对于多种身体功能是必不可少的，包括热调节、氧气和营养物质向组织的输送，以及代谢废物的清除。理解vasodilation（血管扩张）对理解我们身体如何对不同刺激（如锻炼、热量和压力）作出反应至关重要。当我们进行身体活动时，肌肉需要更多的氧气和营养物质，以维持其增加的代谢需求。作为回应，身体会启动vasodilation（血管扩张），使供应这些肌肉的血管扩张。这种血管的扩张允许血流增加，确保必要的资源到达活跃的组织。此外，vasodilation（血管扩张）有助于散发锻炼过程中产生的热量，防止过热并维持最佳的体温。vasodilation（血管扩张）的另一个重要方面是其在炎症反应中的作用。当组织受伤或感染时，诸如组胺和前列腺素等炎症介质被释放。这些物质促进vasodilation（血管扩张），导致受影响区域的血流增加。这种增强的循环将免疫细胞带到受伤部位，促进愈合过程。然而，过度的vasodilation（血管扩张）可能导致水肿等状况，液体在组织中积聚，造成肿胀和不适。此外，vasodilation（血管扩张）的调节受到多种因素的影响，包括神经和激素信号。自主神经系统在调节血管直径方面发挥着重要作用。例如，在压力时期，交感神经系统可以在某些血管床中诱导vasodilation（血管扩张），而在其他血管中收缩，有效地将血流重定向到心脏和大脑等重要器官。激素如一氧化氮、肾上腺素和血管紧张素 II 也影响vasodilation（血管扩张）。例如，一氧化氮是由血管内皮细胞产生的强效血管扩张剂。它扩散进入平滑肌细胞并促进放松，从而导致vasodilation（血管扩张）。另一方面，血管紧张素 II 主要引起血管收缩，但在特定条件下也可以诱导vasodilation（血管扩张），突显了不同调节机制之间复杂的相互作用。总之，vasodilation（血管扩张）是一个基本的生理过程，使身体能够适应各种挑战并维持整体健康。它的重要性超越了单纯的血流调节；它与热调节、炎症和组织修复等过程密切相关。全面理解vasodilation（血管扩张）不仅阐明了正常生理功能，还为与心血管健康、运动生理学和炎症状况治疗相关的医学实践提供了信息。随着研究不断揭示这一过程的复杂性，vasodilation（血管扩张）在促进健康和预防疾病方面的重要性变得愈加明显。