Support of pulmonary capillaries in avian lung
نویسندگان
چکیده
منابع مشابه
Fragility of pulmonary capillaries.
Although the pulmonary capillaries were discovered in 1661, the ultrastructure of the wall was not elucidated until 60 years ago. Electron micrographs then showed that only 0.2 μm of tissue separated the capillary endothelium from the alveolar space over much of the area. In retrospect this vanishingly small protective layer should have alerted physiologists to the potential fragility of the ca...
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I t is remarkable that it has taken so long to recognise how vulnerable the pulmonary capillaries are to mechanical failure during strenuous exercise. After all, the extreme thinness of the capillary wall was appreciated when the first electron micrographs were obtained by Low in 1952. We now know that the total area of the blood-gas barrier (BGB) in the human lung is 50–100 m and that for more...
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متن کاملPulmonary capillaries are recruited during pulsatile flow.
Capillaries recruit when pulmonary arterial pressure rises. The duration of increased pressure imposed in such experiments is usually on the order of minutes, although recent work shows that the recruitment response can occur in <4 s. In the present study, we investigate whether the brief pressure rise during cardiac systole can also cause recruitment and whether the recruitment is maintained d...
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ژورنال
عنوان ژورنال: Respiratory Physiology & Neurobiology
سال: 2007
ISSN: 1569-9048
DOI: 10.1016/j.resp.2007.08.006