MICROANATOMY

Detailed explanation-1: -The process of exhaling carbon dioxide is called expiration. It is a passive process. It occurs when the size of the thoracic activity decreases and the air pressure outside increases. Now the external intercostal muscles relax and the internal intercostal muscles contract.

Detailed explanation-2: -Expiration. Expiration (exhalation) is the process of letting air out of the lungs during the breathing cycle. During expiration, the relaxation of the diaphragm and elastic recoil of tissue decreases the thoracic volume and increases the intraalveolar pressure.

Detailed explanation-3: -Expiration is typically a passive process that happens from the relaxation of the diaphragm muscle (that contracted during inspiration). The primary reason that expiration is passive is due to the elastic recoil of the lungs.

Detailed explanation-4: -EXPIRATION. Expiration can either be quiet or forced. Quiet expiration is a passive process occurring at rest, whereas forced expiration is an active process that occurs during exercise.

Detailed explanation-5: -When the lungs exhale, the diaphragm relaxes, and the volume of the thoracic cavity decreases, while the pressure within it increases. As a result, the lungs contract and air is forced out.