bronchiole

简明释义

英[ˈbrɑŋkiˌoʊl]美[ˈbrɑŋkiˌoʊl]

n. [解剖] 细支气管

英英释义

单词用法

同义词

反义词

例句

1.Although the bacteria were not detected in lung, the pathologic changes were obvious such as abruption of microvilli from bronchiole and the necrosis area in lung.

肺部虽未找到细菌，但发现有明显的病变存在，如细支气管的微绒毛脱落，并可见坏死区。

2.Breathing difficulties include shortness of breath, coughing, rattling and wheezing, normally as a result of the narrowing of the bronchiole tubes.

包括呼吸困难，呼吸急促，咳嗽，剧烈震动和喘息，通常是由于缩小的细支气管管。

3.ResultsAmong the 180 deceased coal miners, there were 155 cases of chronic bronchitis, with a prevalence rate of 861%, mainly affecting bronchia and bronchiole.

结果在180例煤矿工人中，患慢性支气管炎的155例，检出率为86．1％，与是否患煤工尘肺无关。

4.Although the bacteria were not detected in lung, the pathologic changes were obvious such as abruption of microvilli from bronchiole and the necrosis area in lung.

肺部虽未找到细菌，但发现有明显的病变存在，如细支气管的微绒毛脱落，并可见坏死区。

5.Pathologically, all layers of the respiratory bronchiole walls were involved.

病理形态特点是呼吸性细支气管全层受累。

6.It is seen that enlarged air Spaces is communicated with proximal respiratory bronchioles and bronchioles, no narrow or incompleted narrow bronchiole were found.

证明气肿腔与其近端呼吸性细支气管和细支气管相通，未见狭窄或不完全阻塞，提出开放性肺气肿的新理论。

7.Panacinar emphysema occurs with loss of all portions of the acinus from the respiratory bronchiole to the alveoli.

发生全肺气肿时，从呼吸性细支气管到肺泡的所有腺泡都丢失了。

8.Bronchiole — Small branch of the bronchus that carries air to and from the alveoli.

细支气管——支气管的细小分支，输送空气进出肺泡。

9.There are great many alveolar ducts in the respiratory portion. Each respiratory bronchiole branched and formed many generous alveolar ducts.

肺呼吸部肺泡管的数量多，每支呼吸性细支气管分出多条肺泡管，肺泡管宽大；

10.In chronic bronchitis, the walls of the bronchiole 细支气管 become thickened and inflamed.

在慢性支气管炎中，细支气管的壁变得增厚和发炎。

11.Researchers found that exposure to smoke can damage the bronchiole 细支气管 lining.

研究人员发现，接触烟雾会损害细支气管的内膜。

12.During the asthma attack, the muscles around the bronchiole 细支气管 tightened, making it hard to breathe.

在哮喘发作期间，围绕细支气管的肌肉收缩，使得呼吸变得困难。

13.The doctor explained that the inflammation in the bronchiole 细支气管 could lead to breathing difficulties.

医生解释说，细支气管的炎症可能导致呼吸困难。

14.The bronchiole 细支气管 plays a crucial role in the respiratory system by directing air to the alveoli.

细支气管在呼吸系统中起着至关重要的作用，负责将空气引导到肺泡。

作文

The human respiratory system is a complex network that plays a crucial role in our survival. At the heart of this system are the lungs, where the exchange of oxygen and carbon dioxide occurs. One of the essential components of the lungs is the bronchiole, which are tiny air passages that branch off from the bronchi. Understanding the function and importance of bronchiole is vital for comprehending how our bodies breathe and maintain homeostasis.When we inhale, air travels through our nose or mouth and enters the trachea, which then divides into two primary bronchi, one for each lung. These bronchi further divide into smaller branches, leading to the bronchioles. The bronchiole is the smallest airway in the lungs, and it plays a significant role in directing air to the alveoli, where gas exchange occurs. Each bronchiole is lined with smooth muscle, which allows them to constrict or dilate, regulating airflow and ensuring that air reaches the areas of the lungs that need it most.The structure of the bronchiole is quite unique. Unlike the larger bronchi, which have cartilage to keep them open, bronchioles are primarily made up of smooth muscle and elastic fibers. This flexibility is crucial because it allows the bronchiole to adjust the airflow during activities such as exercise, where more oxygen is required. When we engage in physical activity, the bronchiole relaxes, widening the air passages and allowing more air to enter the lungs.Moreover, the bronchiole has a vital role in protecting the lungs from harmful substances. The lining of the bronchiole secretes mucus, which traps dust, pathogens, and other particles, preventing them from reaching the delicate alveoli. Tiny hair-like structures called cilia move the mucus upward toward the throat, where it can be swallowed or expelled, thus keeping the respiratory system clear of debris.However, the bronchiole can be affected by various diseases and conditions. Asthma, for instance, is characterized by the inflammation of the bronchiole, which leads to narrowing and difficulty in breathing. During an asthma attack, the muscles around the bronchiole tighten, and the lining swells, making it hard for air to flow. This highlights the importance of maintaining healthy bronchiole function for overall respiratory health.Another condition that affects the bronchiole is chronic obstructive pulmonary disease (COPD), which includes chronic bronchitis and emphysema. In these conditions, the bronchiole becomes damaged, leading to airflow limitation and breathing difficulties. Understanding the role of the bronchiole in these diseases emphasizes the need for preventative measures, such as avoiding smoking and pollutants.In conclusion, the bronchiole is a small yet vital part of our respiratory system. It not only facilitates the movement of air but also protects our lungs from harmful particles. By understanding the structure and function of the bronchiole, we can better appreciate the complexity of our respiratory system and the importance of maintaining its health. Awareness of conditions that can affect the bronchiole can lead to better health choices and improved quality of life. Thus, the study of the bronchiole is not just an academic exercise; it is a crucial aspect of understanding human health and disease.

人类呼吸系统是一个复杂的网络，在我们的生存中发挥着至关重要的作用。这个系统的核心是肺部，氧气和二氧化碳的交换就在这里发生。肺部的一个重要组成部分是细支气管，它是从支气管分出的微小气道。理解细支气管的功能和重要性，对于理解我们身体如何呼吸和维持内环境稳态至关重要。当我们吸气时，空气通过鼻子或嘴巴进入气管，然后分为两个主支气管，一个通往每个肺。这些支气管进一步分成更小的分支，通向细支气管。细支气管是肺部最小的气道，它在将空气引导到肺泡（气体交换发生的地方）中发挥着重要作用。每个细支气管都被平滑肌包围，这使得它们能够收缩或扩张，从而调节气流，确保空气到达肺部最需要的区域。细支气管的结构非常独特。与具有软骨以保持开放的较大支气管不同，细支气管主要由平滑肌和弹性纤维组成。这种灵活性至关重要，因为它使得细支气管能够在运动等活动中调整气流，此时需要更多的氧气。当我们进行体育活动时，细支气管放松，气道扩宽，允许更多的空气进入肺部。此外，细支气管在保护肺部免受有害物质方面也发挥着重要作用。细支气管的内衬分泌粘液，捕获灰尘、病原体和其他颗粒，防止它们到达脆弱的肺泡。称为纤毛的微小毛发状结构将粘液向上移动到喉咙，在那里可以吞下或排出，从而保持呼吸系统清洁。然而，细支气管可能会受到各种疾病和情况的影响。例如，哮喘的特征是细支气管的炎症，这导致气道狭窄和呼吸困难。在哮喘发作期间，细支气管周围的肌肉收紧，内衬肿胀，使得空气流动变得困难。这突显了维持健康的细支气管功能对整体呼吸健康的重要性。影响细支气管的另一种情况是慢性阻塞性肺病（COPD），其中包括慢性支气管炎和肺气肿。在这些情况下，细支气管受到损伤，导致气流限制和呼吸困难。了解细支气管在这些疾病中的作用强调了预防措施的必要性，例如避免吸烟和污染物。总之，细支气管是我们呼吸系统中一个小而重要的部分。它不仅促进空气的流动，还保护我们的肺部免受有害颗粒的侵害。通过理解细支气管的结构和功能，我们可以更好地欣赏我们呼吸系统的复杂性以及维护其健康的重要性。意识到可能影响细支气管的疾病可以带来更好的健康选择和提高生活质量。因此，对细支气管的研究不仅仅是学术上的练习；它是理解人类健康和疾病的关键方面。