Ms Inhale -

Muscles between the ribs contract, pulling the rib cage up and out.

It is the first step in the gas exchange process, followed by exhalation, which removes carbon dioxide ( CO2cap C cap O sub 2 Factors Affecting Inhalation ms inhale

The diaphragm (the muscle below the lungs) contracts and moves downward, flattening out. Muscles between the ribs contract, pulling the rib

These movements increase the size of the thoracic cavity, creating lower pressure (negative pressure) inside the lungs compared to the outside air. Air rushes in through the nose or mouth,

Air rushes in through the nose or mouth, traveling down the trachea, through the bronchial tubes, and into the alveoli (air sacs). Physiological Role

Breathing acts as a key regulator of acidity ( ) within the body.

Inhaling brings fresh oxygen into the bloodstream to support bodily functions.