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.
Define the terms ventilation, external respiration, and internal respiration. pulmonary ventilation. breathing: air is moved in and out of the lungs to refresh gasses. external respiration - pulmonary capillaries. oxygen diffuses from the lungs to the blood, and carbon dioxide diffuses from the blood to the lungs.