Anatomical dead space
Anatomical Dead Space
Anatomical dead space (pronunciation: /əˈnatəmɪk(ə)l dɛd speɪs/) refers to the portion of the respiratory system where gas exchange does not occur. This includes the trachea, bronchi, and bronchioles.
Etymology
The term "anatomical dead space" is derived from the Greek words "anatome" (dissection) and "nekros" (dead), and the Old English "spac" (space). It refers to the 'dead' or non-functional space in the respiratory system that does not participate in gas exchange.
Related Terms
- Alveoli: Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
- Bronchi: The main passageway into the lungs.
- Bronchioles: Airways in the lungs that lead from the bronchi to the alveoli.
- Trachea: Also known as the windpipe, it is the main airway to the lungs.
- Physiological dead space: The sum of the anatomical dead space and any pathological alveolar dead space.
- Tidal volume: The amount of air which enters the lungs during normal inhalation at rest.
See Also
External links
- Medical encyclopedia article on Anatomical dead space
- Wikipedia's article - Anatomical dead space
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