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.
Ventilation - movement of air in and out of the lungs (breathing) External respiration - exchange of O2 for CO2. Transport of gases - to and from the cells. Internal respiration - exchange of CO2 for O2 (cellular level)