Väljalisõhk

Väljalisõhk refers to the air expelled from the lungs during exhalation. It is a crucial component of respiration, carrying carbon dioxide and other waste products from the body. The process of exhalation is largely passive, driven by the relaxation of the diaphragm and intercostal muscles, which allows the chest cavity to decrease in volume. This decrease in volume increases the pressure within the lungs, forcing the väljalisõhk out.

The composition of väljalisõhk differs significantly from inhaled air. While inhaled air is rich in oxygen, väljalisõhk contains considerably less oxygen and a higher concentration of carbon dioxide. It also contains water vapor, making it humid, and trace amounts of other gases and particles that have been expelled from the respiratory system. The temperature of väljalisõhk is also typically warmer than the ambient air due to body heat.

Monitoring the characteristics of väljalisõhk can provide insights into an individual's health. For instance, the presence of certain volatile organic compounds in väljalisõhk can indicate metabolic disorders or infections. Breathalyzers, used to measure blood alcohol content, analyze the concentration of alcohol vapor in väljalisõhk. Furthermore, the volume and rate of väljalisõhk can be measured in pulmonary function tests to assess lung capacity and identify respiratory conditions such as asthma or COPD. The study of väljalisõhk is therefore relevant in fields ranging from medicine and sports science to environmental monitoring.