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.
Jet ventilation, gas exchange. Definition. Jet ventilation can be performed via either high or low frequency means. High frequency jet ventilation (HFJV) is accomplished with specialized ventilators capable of producing the high pressure, low volume breaths necessary. Low frequency jet ventilation (LFJV), however, is usually accomplished with a manually triggered hand-held device.