The branches 3 mm and less in diameter are known as bronchioles, which lead to minute air sacs called alveoli (see pulmonary alveolus), where the actual gas molecules of oxygen and carbon dioxide are exchanged between the respiratory spaces and the blood capillaries.
At the peripheral parts of the respiratory tract, CK1δ staining was lost upon transition from bronchioles to the respiratory spaces (Figure 3K, L).
The aim of this study was to assess the effects of added respiratory dead space on sleep disordered breathing.
It generate positive airway pressure, reduces respiratory dead space, airway resistance, and less frequent interruption of therapy.
Our study aimed to compare the clinical utility of three methods for calculating respiratory dead space in the diagnosis of pulmonary embolism in outpatients with pleuritic chest pain.
Exhaled breath is a mixture of alveolar air and respiratory dead space air.
For an overview of respiratory dead-space measurements, we refer to Tang et al. [40].
Biofunctional compartments are spaces formed during particular biological functions, such as deglutition, speech production and respiratory posture: inter-occlusal space (IOS), sub-palatal space (SPS), mid-pharyngeal space and the naso-epipharyngeal space (Fig. 2).
Daily-collected variables, including Pmax or Pplat, ΔP, PEEP, VT, oxygen fraction of inspired air (FiO2), respiratory rate, dead space fraction, and compliance, and blood gas analysis parameters such as partial pressure of oxygen in arterial blood (PaO2), PaCO2, pH, and bicarbonate level, were presented as medians with their interquartile ranges.
