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.
Pulmonary ventilation is the process of moving air into and out of the lungs to facilitate gas exchange. The respiratory system uses both a negative pressure system and the contraction of muscles to achieve pulmonary ventilation.he airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the bodyâs exterior. The lungs... Click to read more below. The cells of the human body require a constant stream of oxygen to stay alive.