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.
Lesson Summary. In summary, ventilation includes both inspiration, in which air moves in, and expiration, in which air moves out of the lungs. Ventilation is an active example of Boyle's Law, which states that the pressure of a container of gas decreases as the volume of that container increases.