ANATOMY

Detailed explanation-1: -The second phase is called expiration, or exhaling. 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.

Detailed explanation-2: -One inhale to fill up most of your lungs (mini-pause) A second, smaller inhale to fully ‘top up’ your lungs (mini-pause) One exhale to release most of the air from your lungs (mini-pause) A second, smaller exhale to fully ‘push out’ the rest of the air from your lungs (mini-pause)

Detailed explanation-3: -This model assumes that the respiratory cycle consists of three phases: inspiration, post-inspiration, and expiration.

Detailed explanation-4: -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. Expiration pushes air out of the lungs.

Detailed explanation-5: -When you breathe out, or exhale, your diaphragm and rib muscles relax, reducing the space in the chest cavity. As the chest cavity gets smaller, your lungs deflate, similar to how air releases from a balloon.