physiologic dead space

== English == === Noun === physiologic dead space (countable and uncountable, plural physiologic dead spaces) (obsolete) The volume of the conducting airways of the lung. This definition became inadequate once the alveolar dead space was described. 1948. Ward S. Fowler, Lung Function Studies. II. The Respiratory Dead Space., J. Physiology. Vol. 154. p 406. Throughout this paper, the term physiological dead space will be used to refer to the volume of the conducting airway down to the location at which a large change in gas composition occurs. (physiology) That volume of air in the lung which does not partake in gas exchange. (physiology) That volume of air in the lung that does not eliminate carbon dioxide, as defined functionally by the Bohr equation. 2011. John B. West, Respiratory Physiology: The Essentials. Lippincott Williams & Wilkins; Ninth edition. Bohr's method measures the volume of the lung which does not eliminate CO2. Because this is a functional measurement, the volume is called the physiologic dead space. (physiology) The sum of the anatomic plus the alveolar dead spaces. (physiology) The sum of the parallel and the serial dead spaces. ==== Synonyms ==== Bohr dead space effective respiratory dead space === References === Arend Bouhuys. 1964. "Respiratory dead space." in Handbook of Physiology. Section 3: Respiration. Vol 1. Wallace O. Fenn and Hermann Rahn (eds). Washington: American Physiological Society. John B. West. 2011. Respiratory Physiology: The Essentials. Lippincott Williams & Wilkins; Ninth edition. →ISBN.