For example, a communication officer may work with a company's CEO to develop a message of family values. Their external communications may include social media and advertising that shows how the organization is devoted to family values.
Medical Definition of Ventilation. Ventilation: The exchange of air between the lungs and the atmosphere so that oxygen can be exchanged for carbon dioxide in the alveoli (the tiny air sacs in the lungs). Last Editorial Review: 5/13/2016.
1 Oxygen then diffuses into the cells, and carbon dioxide enters the blood. 2  The blood then circulates back to the lung, where the process begins again. 3  Definition of Ventilation Ventilation is the process of moving gases through the respiratory tract. In other words, oxygen diffuses towards the blood and is taken up by hemoglobin, and carbon dioxide diffuses towards the alveolus and mixes with the air. 2  No âactive processâ is involved. 3  Oxygen simply diffuses through the membrane and plasma, and is taken up by the red blood cells.