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Definition of Physiologic dead space
1. Noun. (obsolete) The volume of the conducting airways of the lung. This definition became inadequate once the ''alveolar dead space'' was described. ¹
2. Noun. (context: physiology) That volume of air in the lung which does not partake in gas exchange. ¹
3. Noun. (context: physiology) That volume of air in the lung that does not eliminate carbon dioxide, as defined functionally by the Bohr equation. ¹
4. Noun. (context: physiology) The sum of the anatomic plus the alveolar dead spaces. ¹
5. Noun. (context: physiology) The sum of the parallel and the serial dead spaces. ¹
¹ Source: wiktionary.com
Medical Definition of Physiologic dead space
1. The sum of anatomic and alveolar dead space; the dead space calculated when the carbon dioxide pressure in systemic arterial blood is used instead of that of alveolar gas in Bohr's equation; it is a virtual or apparent volume that takes into account the impairment of gas exchange because of uneven distributions of lung ventilation and perfusion. (05 Mar 2000)
Lexicographical Neighbors of Physiologic Dead Space
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