A cell membrane is also known as a plasma membrane or cytoplasmic membrane. The cell membrane separates the interior of a cell from its outside environment. The main function of a cell membrane is to protect the cell from its surroundings.
assisted ventilation. Definition: application of mechanically or manually generated positive pressure to gas(es) in or about the airway during inhalation as a means of augmenting the movement of gases into the lungs. Synonym(s): assisted respiration. Search Stedman's Medical Dictionary.
ventilation. 1. the process or act of supplying a house or room continuously with fresh air. 2. in respiratory physiology, the process of exchange of air between the lungs and the ambient air; see alveolar ventilation and pulmonary ventilation. See also respiration (def.