NEET PG DENTAL EXAM

Detailed explanation-1: -During inhalation, the ribs move up and outward and the diaphragm moves in. this movement decrease the space in our chest cavity and the air rushes in. 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-2: -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.

Detailed explanation-3: -The lungs are protected by the rib cage. Normal respiration depends on the movement of the rib cage which moves up and out on inspiration and down and in on expiration. The movement of the rib cage is brought about by the contraction and relaxation of the internal and external intercostal muscles.

Detailed explanation-4: -During exhalation, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity. As they relax they position rib cage downwards and inwards.