Distal alveolar spaces

Effects of the lungs of inhaled solvents simplify to the consideration of agents affecting airway cells that include n-hexane and PCBs. Both cause proliferation and transformation of distal airway lining cells to produce mucus and obstruct airways and cause inflammatory cells to pour into the lungs distal alveolar spaces interfering wifli for gas exchange. 

Figure 27.7. Macrophages migrate to a site of injury in the wall of a distal airway. Alveolar macrophages normally residing in the alveolar spaces migrate to chemoattractants released by injured epithehal cells. Other leukocytes such as monocytes and neutrophils also respond to chemotactic molecules and migrate from the blood across the pulmonary interstitium.

In the 3-hour group, the width of the periodontium at the distal tension side enlarged to a size of 100 pm, resulting in relative mobility of the root and stretching of the periodontal fibers with the formation of interfiber space. The root on the pressure side approached further toward the alveolar bone. On the tension side, cytoplasms of the periodontal fibroblasts were... 

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