MICROANATOMY

Detailed explanation-1: -Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.

Detailed explanation-2: -During inspiration, the diaphragm contracts and moves downward and when the diaphragm relaxes it becomes dome shaped and moves upward during expiration.

Detailed explanation-3: -During exhalation, the ribs moves down and inward and the diaphragm moves up. This movement increases the space in our chest cavity and the air is pushed out.

Detailed explanation-4: -When you breathe in, your diaphragm contracts (tightens) and flattens, moving down towards your abdomen. This movement creates a vacuum in your chest, allowing your chest to expand (get bigger) and pull in air. When you breathe out, your diaphragm relaxes and curves back up as your lungs push the air out.

Detailed explanation-5: -During expiration, the diaphragm relaxes, the cavity volume decreases, and the pressure rises. The lungs constrict as a result, and the air is driven out. A vacuum is created by this contraction. This causes air to be drawn into the lungs.