Ms Inhale -

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

These movements increase the size of the thoracic cavity, creating lower pressure (negative pressure) inside the lungs compared to the outside air. ms inhale

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

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

How the Lungs Work - What Breathing Does for the Body - nhlbi - NIH

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

The diaphragm (the muscle below the lungs) contracts and moves downward, flattening out.