adventitia

简明释义

英[ˌædvenˈtɪʃɪə]美[ˌædvənˈtɪʃɪə]

n. 动脉外膜

复 数 a d v e n t i t i a s

英英释义

单词用法

同义词

反义词

例句

1.Light microscopy showed edema in the arterial wall with local necrosis in the media and adventitia, and dilated lymph vessles and later fibrosis in the adventitia and perivascular tissues.

光镜下发现各级冠状动脉壁水肿，外膜及中膜局灶性坏死，外膜及其周围组织淋巴郁滞，后期出现结缔组织增生或纤维化；

2.BACKGROUND: Previous studies demonstrated that adventitia fibroblasts exhibit important role in the hyperplasia of newly born endomembrane after blood vessel injury.

背景：近年来的研究表明，血管外膜成纤维细胞在血管损伤后新生内膜的增生中起重要作用。

3.Results: Compared with WKY rats, the SBP, vascular collagen contents, adventitia and media cross-sectional area and wall thickness were significantly increased in SHRc (P0.05).

结果：自发性高血压大鼠未治疗组的收缩压、血管壁胶原含量、外膜面积、中膜面积和管壁厚度均显著高于正常对照组(P 0.05)。

4.Vascular adventitia: Bystander, active player or trigger for atherosclerosis?

血管外膜：动脉粥样硬化旁观者？参与者？启动者？

5.Varicose group of intima and media, adventitia few scattered mast cells.

曲张组肥大细胞外膜、中膜、内膜少量散在分布。

6.The structure of adventitia is simple, and transited to the peripheral connective tissue.

外膜较薄，结构比较简单，逐渐移行为周围的结缔组织。

7.Aim to investigate the effect of atorvastatin on intimal hyperplasia of carotid artery after adventitia removal in spontaneously hypertensive rats (SHR).

目的研究阿托伐他汀对自发性高血压大鼠颈动脉外膜去除后血管内膜增生的影响。

8.During surgery, care must be taken not to damage the adventitia of the arteries.

在手术过程中，必须小心不要损伤动脉的外膜。

9.The adventitia plays a crucial role in the healing process of injured blood vessels.

在受伤血管的愈合过程中，外膜起着至关重要的作用。

10.The adventitia of the esophagus contains connective tissue that anchors it to surrounding structures.

食管的外膜含有连接组织，将其固定在周围结构上。

11.In histology, the adventitia is important for understanding vascular anatomy.

在组织学中，理解血管解剖时，外膜是非常重要的。

12.The outer layer of the blood vessel is known as the adventitia, which provides structural support.

血管的外层被称为外膜，它提供结构支持。

作文

The human body is a complex and intricate system composed of various organs, tissues, and cells, each playing a unique role in maintaining overall health. One of the critical components of this system is the vascular system, which includes arteries, veins, and capillaries. Each of these blood vessels has distinct layers that contribute to their function and structure. Among these layers, the outermost layer is known as the adventitia, which is essential for the stability and integrity of the blood vessels. Understanding the role of the adventitia can provide valuable insights into cardiovascular health and disease.The adventitia is primarily composed of connective tissue, which serves to anchor the blood vessels to surrounding structures. This layer is crucial because it provides support and prevents the blood vessels from collapsing or becoming overly distended under pressure. In arteries, the adventitia contains collagen fibers that allow for flexibility while maintaining strength. In contrast, veins often have a more extensive adventitia due to their larger diameter and the need for additional support. This structural difference highlights the adaptability of the adventitia in response to the varying demands placed on different types of blood vessels.In addition to providing structural support, the adventitia plays a vital role in the vascular system's communication network. It contains nerves and small blood vessels, known as vasa vasorum, which supply nutrients to the larger blood vessels. This aspect of the adventitia is particularly important because it ensures that the blood vessels remain healthy and functional. Without adequate nourishment, the inner layers of the blood vessels could become compromised, leading to conditions such as atherosclerosis or other cardiovascular diseases.Furthermore, the adventitia is involved in the inflammatory response. When the body experiences injury or infection, the adventitia can become a site for immune cell infiltration. This response is essential for healing but can also contribute to pathological conditions if it becomes chronic. For example, persistent inflammation in the adventitia can lead to the thickening of the vessel wall, which may narrow the lumen and restrict blood flow.In summary, the adventitia is more than just a protective outer layer; it is an active participant in maintaining vascular health. Its role in providing structural support, facilitating nutrient exchange, and participating in the inflammatory response underscores its importance in the cardiovascular system. As we continue to study the intricacies of human anatomy, it becomes increasingly clear that even the seemingly simple components, like the adventitia, are essential for our overall well-being. Understanding these layers can aid in the development of new therapeutic strategies to combat cardiovascular diseases, ultimately improving health outcomes for individuals worldwide. Thus, the adventitia serves as a reminder that every part of our body has a significant role to play, and appreciating these roles can enhance our knowledge of human health.

人体是一个复杂而精密的系统，由各种器官、组织和细胞组成，每个部分在维持整体健康中发挥着独特的作用。其中一个关键组成部分是血管系统，包括动脉、静脉和毛细血管。这些血管中的每一层都对其功能和结构有独特的贡献。在这些层中，最外层被称为外膜，它对血管的稳定性和完整性至关重要。理解外膜的作用可以为心血管健康和疾病提供有价值的见解。外膜主要由结缔组织组成，用于将血管锚定到周围结构。这一层至关重要，因为它提供支持，防止血管在压力下塌陷或过度膨胀。在动脉中，外膜含有胶原纤维，允许灵活性同时保持强度。相反，静脉通常具有更广泛的外膜，因为它们的直径较大，需要额外的支持。这种结构差异突显了外膜在应对不同类型血管所施加的变化需求中的适应能力。除了提供结构支持外，外膜在血管系统的通信网络中也发挥着重要作用。它含有神经和小血管，称为血管血管，供给大型血管养分。这一方面对于外膜至关重要，因为它确保血管保持健康和功能正常。如果没有足够的营养，血管的内层可能会受到损害，导致动脉粥样硬化或其他心血管疾病等状况。此外，外膜还参与炎症反应。当身体经历损伤或感染时，外膜可能成为免疫细胞浸润的部位。这一反应对愈合至关重要，但如果变得慢性，也可能导致病理状况。例如，外膜中的持续炎症可能导致血管壁增厚，从而缩小腔道并限制血流。总之，外膜不仅仅是一个保护性的外层；它是维护血管健康的积极参与者。它在提供结构支持、促进营养交换和参与炎症反应方面的作用突显出其在心血管系统中的重要性。随着我们继续研究人体解剖的复杂性，越来越清楚的是，即使是看似简单的组成部分，如外膜，也对我们的整体健康至关重要。理解这些层次可以帮助开发新的治疗策略，以对抗心血管疾病，最终改善全球个人的健康结果。因此，外膜提醒我们身体的每个部分都有重要的角色要扮演，欣赏这些角色可以增强我们对人类健康的认识。