alveolar air

简明释义

肺泡气

英英释义

例句

1.The alveolar air (肺泡空气) serves as a reservoir for gases before they enter the bloodstream.

alveolar air（肺泡空气）作为气体进入血液之前的储存库。

2.Measuring the concentration of oxygen in alveolar air (肺泡空气) helps assess lung function.

测量alveolar air（肺泡空气）中的氧气浓度有助于评估肺功能。

3.During a deep breath, more alveolar air (肺泡空气) is available for gas exchange.

在深呼吸时，可用于气体交换的alveolar air（肺泡空气）更多。

4.The exchange of gases occurs in the lungs where oxygen diffuses into the alveolar air (肺泡空气) and carbon dioxide is expelled.

气体交换发生在肺部，氧气扩散到alveolar air（肺泡空气）中，二氧化碳被排出。

5.In people with lung disease, the composition of alveolar air (肺泡空气) can be significantly altered.

在患有肺病的人群中，alveolar air（肺泡空气）的成分可能会显著改变。

作文

The human respiratory system is a complex network that plays a vital role in maintaining life. One of the most important components of this system is the exchange of gases that occurs in the lungs, particularly in the alveoli. The term alveolar air refers to the air present in the alveoli, which are tiny air sacs located at the end of the bronchial tubes. These structures are essential for the process of respiration, as they allow for the exchange of oxygen and carbon dioxide between the air we breathe and the bloodstream. Understanding the significance of alveolar air can help us appreciate how our bodies function and the importance of maintaining healthy lungs.When we inhale, air travels through the trachea and into the bronchi, which branch out into smaller tubes called bronchioles. At the end of these bronchioles are the alveoli, where the actual gas exchange takes place. The air that fills these alveoli is known as alveolar air. This air is different from the atmospheric air we breathe in because it has undergone a series of changes due to the processes of inhalation and exhalation.One of the key features of alveolar air is its composition. While atmospheric air contains approximately 21% oxygen, the concentration of oxygen in alveolar air is lower, typically around 14-15%. This decrease is primarily due to the fact that some of the oxygen is absorbed into the blood during the gas exchange process. Conversely, the concentration of carbon dioxide in alveolar air is higher than in atmospheric air, as carbon dioxide is a waste product produced by the body’s cells and is expelled from the bloodstream into the alveoli to be exhaled.The efficiency of gas exchange in the alveoli is crucial for our overall health. Any condition that affects the lungs, such as asthma, chronic obstructive pulmonary disease (COPD), or pneumonia, can impair the exchange of alveolar air and lead to decreased oxygen levels in the blood. This can result in symptoms such as shortness of breath, fatigue, and in severe cases, can even be life-threatening. Therefore, it is essential to take care of our respiratory health by avoiding smoking, staying active, and seeking medical attention when experiencing respiratory issues.In addition to its physiological importance, alveolar air also has implications in the field of medicine. For instance, during surgeries or medical procedures that require anesthesia, understanding the dynamics of alveolar air can help anesthesiologists manage the levels of oxygen and carbon dioxide in a patient’s body. Furthermore, in critical care settings, monitoring the composition of alveolar air can provide valuable insights into a patient’s respiratory status and overall health.In conclusion, alveolar air is a fundamental aspect of the respiratory system that facilitates the exchange of gases necessary for life. By understanding its composition and the factors that can influence it, we can better appreciate the intricate workings of our bodies and the importance of maintaining healthy lungs. As we continue to learn more about respiratory health, it becomes increasingly clear that taking proactive steps to protect our lungs is essential for our overall well-being. Whether through lifestyle choices or medical interventions, ensuring the optimal function of our respiratory system will enable us to lead healthier, more vibrant lives.

人类呼吸系统是一个复杂的网络，在维持生命中起着至关重要的作用。这个系统中最重要的组成部分之一是肺部发生的气体交换，尤其是在肺泡中。术语alveolar air指的是存在于肺泡中的空气，肺泡是位于支气管末端的微小气囊。这些结构对于呼吸过程至关重要，因为它们允许我们呼吸的空气与血液之间进行氧气和二氧化碳的交换。理解alveolar air的重要性可以帮助我们欣赏身体如何运作以及保持健康肺部的重要性。当我们吸气时，空气通过气管进入支气管，然后分支成称为细支气管的小管道。在这些细支气管的末端是肺泡，实际的气体交换就在这里发生。充满这些肺泡的空气被称为alveolar air。这种空气不同于我们吸入的大气空气，因为它在吸入和呼出的过程中经历了一系列变化。alveolar air的一个关键特征是其成分。虽然大气空气中氧气的含量约为21%，但alveolar air中的氧气浓度较低，通常在14-15%左右。这一下降主要是由于一些氧气在气体交换过程中被吸收到血液中。相反，alveolar air中的二氧化碳浓度高于大气空气，因为二氧化碳是身体细胞产生的废物，排出到血液中并进入肺泡以便呼出。肺泡中的气体交换效率对我们的整体健康至关重要。任何影响肺部的情况，例如哮喘、慢性阻塞性肺病（COPD）或肺炎，都可能损害alveolar air的交换，并导致血液中的氧气水平下降。这可能导致呼吸急促、疲劳等症状，在严重情况下甚至可能危及生命。因此，保护我们的呼吸健康是至关重要的，方法包括避免吸烟、保持活跃以及在出现呼吸问题时寻求医疗帮助。除了生理重要性，alveolar air在医学领域也具有重要意义。例如，在需要麻醉的手术或医疗程序中，了解alveolar air的动态可以帮助麻醉师管理患者体内的氧气和二氧化碳水平。此外，在重症监护环境中，监测alveolar air的成分可以提供有关患者呼吸状态和整体健康的有价值见解。总之，alveolar air是呼吸系统的基本方面，促进了维持生命所必需的气体交换。通过理解其成分和影响因素，我们可以更好地欣赏我们身体的复杂运作以及保持健康肺部的重要性。随着我们继续学习呼吸健康，越来越明显的是，采取主动措施保护我们的肺部对我们的整体健康至关重要。无论是通过生活方式选择还是医疗干预，确保我们呼吸系统的最佳功能将使我们能够过上更健康、更充实的生活。