![]() īreathing is not characterized by a continuous flow of air through the lungs, but is characterized by an alternating system of inhalation (inspiration) and exhalation (exhalation). The part of the inhaled air that is in the dead space after inspiration has taken place is directly exhaled again during the subsequent expiration without having come into contact with the alveoli.ĭead space ventilation also includes that part of respiration that corresponds to the physiologically non-functioning part of the lungs, if one is present. These can be alveoli that have lost their ability to exchange gases due to illness or other influences. The functional importance of the dead space lies primarily in the conditioning of the inhaled air through heating – in extreme cases also through cooling – and enrichment with water vapor up to saturation as well as in the filtering out of solid bodies (dust) and pathogenic germs. ![]() ![]() The respiratory tract or the respiratory system consists of the lungs or the air sacs (alveoli), which make up the functional part of breathing, and the upstream so-called dead space, which is made up of the nose and throat area, the trachea and the bronchi. ![]()
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