Expiration occurs.
When lungs recoil, they passively return to their resting state after being stretched during inhalation. This recoil helps to expel air during exhalation by reducing the volume within the lungs, causing air pressure to increase and air to be pushed out.
During exhalation, elastic recoil is responsible for the passive recoil of the lungs and chest wall. As the diaphragm and external intercostal muscles relax, the elastic fibers in the lungs and chest wall recoil, pushing air out of the lungs. This process helps to expel air from the lungs and facilitates the breathing cycle.
the lungs recoil/contract to push air out using its smooth muscle
yes
The force responsible for normal expiration is passive recoil of the lungs and chest wall. As the diaphragm and external intercostal muscles relax, the elastic recoil of these structures causes the lungs to decrease in volume, leading to expiration.
Elastic recoil refers to the ability of a stretched or deformed material to return to its original shape or size once the deforming force is removed. This phenomenon is commonly seen in elastic materials like rubber bands, blood vessels, and the lungs, where they can stretch and recoil back to their original state. In the case of the lungs, elastic recoil helps in exhaling air by effectively reducing the lung volume.
the natural tendency for the lungs to recoil and the surface tension of the alveolar fluid
Elastic recoil
It will most likely recoil into its shell.
During exhalation at rest, the principal driving force is passive elastic recoil of the lungs and chest wall. As the diaphragm relaxes and the external intercostal muscles relax, the lungs passively recoil to their resting size, which pushes air out of the lungs. This process does not require active muscle contraction.
Your lungs turn black
answer