With regard to lung ventilation, what does “dead space” refer to? A. air in the conducting zone of the bronchial tree B. air remaining in the alveoli after an exhalation at maximal effort. C. air between the parietal and visceral pleura D. the difference between the volume of a maximum inhalation and the tidal volume.
Option A. Dead space refers to air this is inhaled into the airways however does now no longer attain the alveoli, therefore is exhaled again with out taking part in gas exchange.
