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.
Mechanical ventilation is the use of a mechanical device (machine) to inflate and deflate the lungs. Mechanical ventilation provides the force needed to deliver air to the lungs in a patient whose own ventilatory abilities are diminished or lost. Breathing requires the movement of air into and out of the lungs. This is normally accomplished by the diaphragm and chest muscles. A variety of medical conditions can impair the ability of these muscles to accomplish this task, including: muscular dystrophies.