A method for the combined study of temperature, pressure, and gaseous composition of the subcutaneous bullae formed in high-altitude tissue emphysema
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This paper deals with the method of study of the three main factors concerned in high-altitude emphysema, namely temperature, pressure, and gaseous composition of the subcutaneous bullae. A new method is suggested which enables the investigations to be carried out by means of a needle containing a stylet thermotransducer, a set of vacuum burettes, a three-way tap, and a kymograph. Several experiments were carried out by this method at pressures down to 7 mm Hg. It was found that the temperature falls during the development of the bullae, whereas the pressure remains constant. The method may be applied to various species of animals.
KeywordsPublic Health Gaseous Composition Combine Study Tissue Emphysema
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