Results 1 to 10 of about 48,240 (250)
Macrophage-epithelial interactions in pulmonary alveoli [PDF]
Alveolar macrophages have been investigated for years by approaches involving macrophage extraction from the lung by bronchoalveolar lavage, or by cell removal from lung tissue. Since extracted macrophages are studied outside their natural milieu, there is little understanding of the extent to which alveolar macrophages interact with the epithelium, or
Kristin Westphalen, Jahar Bhattacharya
europepmc +5 more sources
Pulmonary Surfactant Function in Alveoli and Conducting Airways [PDF]
Surface tension plays a very important role in aeration of the neonate's lungs. Pulmonary surfactant, which is inadequate in the premature infant, modifies surface tension during the act of breathing and is necessary for maintenance of alveolar stability.
Goran Enhorning
doaj +4 more sources
Tuberculosis: oral alveolus and pulmonary alveoli coexisting [PDF]
Tuberculosis of the oral cavity is uncommon in this antibiotic era. We report a case of a long standing non-healing ulcer of the right upper maxillogingival sulcus, found to be tuberculosis of a rather unusual site in the oral cavity, the alveolus.
Nitesh Tayal+3 more
europepmc +5 more sources
Keeping it together: Pulmonary alveoli are maintained by a hierarchy of cellular programs [PDF]
The application of in vivo genetic lineage tracing has advanced our understanding of cellular mechanisms for tissue renewal in organs with slow turnover, like the lung. These studies have identified an adult stem cell with very different properties than classically understood ones that maintain continuously cycling tissues such as the intestine.
Tushar J. Desai, Catriona Y. Logan
europepmc +5 more sources
Hydrodynamic Cleansing of Pulmonary Alveoli [PDF]
The inside wall of the pulmonary alveolus is lined with a thin viscous fluid layer and a monolayer of surfactants. Inhaled foreign particles that reach the lung alveoli are normally neutralized by macrophages and remain inside the lung. Based on the suggestion that a hydrodynamic cleansing mechanism may exist in which particles are swept out by the net
Zelig, D, Haber, S
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Growth of the alveoli and pulmonary arteries in childhood [PDF]
Since alveolar and airway growth have previously been studied in greater detail than has arterial growth, the present study establishes the growth pattern of the arteries and relates this to that of the alveoli and airways. The pattern of post-natal alveolar multiplication found is similar to that reported by Dunnill, but for all ages about 10% above ...
G. Davies, Lynne Reid
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ABSORPTION FROM THE PULMONARY ALVEOLI [PDF]
Experiments upon dogs anesthetized with nembutal and lasting 4 hours, in which the right lymphatic duct and thoracic duct have been cannulated and collection of lung lymph and blood specimens was accomplished after intratracheal instillation of dog plasma, purified bovine serum albumin, crystallized egg albumin, and hemoglobin, have shown that the ...
Esther Hardenbergh, Cecil K. Drinker
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Gaseous Diffusion from Alveoli to Pulmonary Vessels of Considerable Size [PDF]
Thirty patients have been presented in whom the appearance of inhaled hydrogen gas at an electrode in the wedge position of a pulmonary artery was seen to occur within two seconds. In 13 of these patients the appearance of hydrogen occurred with equal or nearly equal rapidity in a pulmonary artery at least 3 mm in diameter.
Harold Gissen+3 more
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THE ABSORPTION OF PROTEIN SOLUTIONS FROM THE PULMONARY ALVEOLI [PDF]
Horse serum, crystallized hemoglobin, and crystallized egg albumin have been injected into the lung alveoli of dogs in which the entrances of the right lymphatics have been tied and the thoracic duct cannulated. Samples of blood and lymph have been taken following this injection.
Margaret MacLanahan+2 more
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High-speed three-dimensional imaging of the pulmonary alveoli [PDF]
Investigating the structure and function of pulmonary alveoli in vivo is crucial for understanding the normal and diseased lung. In particular, understanding the three-dimensional geometry and relationship of the terminal alveoli to their neighboring alveoli, alveolar ducts and acini during respiration would be a major advance.
Guillermo J. Tearney+3 more
openaire +3 more sources