four movements
1 inspirator muscles relax
2 thoracic volume decreases
3 thoracic pressure increases
4 air flows out of lungs
The air inside the lungs is never replaced completely. 1500 ml of air is always present in the lungs. Therefore,gaseous exchange continues in the lungs even during expiration .
The lung doesn't relax, it is controlled by the diaphragm When it relaxes the volume of the lungs decrease during expiration When it contracts the volume of the lungs increases during inhilation
Because to carry out the process of diffusion of gas.
Air moves into the lungs when the diaphragm is flattened. The diaphragm is relaxed (arched) during expiration.
Expiration occurs.
expiration occurs
Elastic recoil functions during expiration. As the diaphragm and external intercostal muscles relax, the elastic tissues of the lungs recoil and air will forced out of the lungs... i guess so
breathing is the human action that causes the lungs to be filled with air.
Inspiration brings air into the lungs. Expiration expels air from the lungs. In most lung diseases, the air breathed in is not completely or easily exhaled.
The movement of air on and out the lungs is called respiration. The movement of air into the lungs is called inhalation (inspiration). The movement of air out of the lungs is called exhalation (expiration).
your brain since your lungs are filled with air
In general, inspiration requires more effort than expiration, as the lungs have a natural tendency to shrink back to their normal size, especially as the pressure inside the lungs is greater than the atmospheric.