if the atmospheric pressure is lower than the alveolar pressure and the airway is open, in which direction will air move ?

Negative air will travel in a direction if the airway is open and the ambient pressure is less than the alveolar pressure. When air pressure exceeds alveolar pressure..The alveolar pressure is positive; when it is lower than atmospheric pressure, it is negative. Airflow into or out of the lungs is controlled by alveolar pressure.The pressure that exists inside the Earth's atmosphere is known as atmospheric pressure, also spelled barometric pressure (after the barometer). The standard atmospheric pressure (abbreviated as atm) is a unit of pressure with a definition of 101,325 Pa (1,013.25 hPa), or 1013.25 millibars, 760 mm Hg.Alveolar pressure (P alv) is the air atmospheric pressure within the lung alveoli. no air is going into or out of the lungs when the glottis is open.Learn more about atmospheric pressure herehttps://brainly.com/question/28310375#SPJ4