pressure inside the thoracic cavity become lower, and air is breathed into the lungs.increasing the volume of thoracic cavity (chest cavity). As a result, and air is breathed into the lungs.Pressure.
Inside the thoracic cavity become Lower pressure, and Air is breathed into the lungs. increasing the volume of thoracic cavity (chest cavity). As a Result, and breathed into the lungs is Air. Pressure.