expiratórios

Expiratórios refers to the final part of the respiratory cycle, known as exhalation. It is the process by which air is expelled from the lungs. This expulsion is typically passive, meaning it occurs without conscious muscular effort, relying on the elastic recoil of the lungs and chest wall. During normal, quiet breathing, the diaphragm relaxes and moves upward, and the external intercostal muscles relax, allowing the rib cage to move downward and inward. This decrease in thoracic volume increases the pressure within the lungs relative to the atmospheric pressure, causing air to flow out.

However, expiratório can also be active, particularly during forced exhalation. In this case, muscles such as the abdominal muscles and the internal intercostal muscles contract to further reduce the volume of the thoracic cavity and expel air more forcefully. This active process is utilized during activities like coughing, sneezing, singing, or blowing. The rate and depth of expiratório, along with inspiratório (inhalation), determine the overall breathing pattern and the amount of gas exchange occurring in the lungs. Monitoring expiratório can be important in assessing respiratory function, as abnormalities in its duration or force can indicate underlying pulmonary conditions.