EXPERIMENTS IN FLUID PRESSURE
نویسندگان
چکیده
منابع مشابه
Cerebrospinal fluid pressure.
The cerebrospinal fluid pressure at the foramen of Monro in man in the recumbent position is less than 100 mm water relative to atmospheric pressure. The oscillations in the pressure wave due to respiration and cardiac pulsation vary with the actual pressure and increase as the overall pressure rises. In man lying horizontally the oscillation at the foramen of Monro is usually less than 50 mm w...
متن کاملInterstitial fluid pressure.
Fluid movement through the capillary membrane has been measured in the lower legs of dogs by using implanted, perforated capsules as internal plethysmographs. Utilizing this procedure it was possible to compare the effects of changes in interstitial fluid pressure with the effects of changes in venous pressure and arterial pressure on movement of fluid through the capillary membrane. A decrease...
متن کاملInterstitial fluid pressure. V. Negative pressure in the lungs.
Interstitial fluid pressures in the lung were estimated in 39 dogs from pressure measurements made in implanted perforated capsules. Special operative procedures were used to minimize operative trauma of the lungs and infection and inflammation in and around the implanted capsules. In 86X of the preparations, the x-ray findings indicated little remaining inflammation and edema around the capsul...
متن کاملCerebrospinal fluid pressure in pyogenic meningitis.
The pressure of cerebrospinal fluid taken at lumbar puncture was recorded objectively by strain gauge pressure measurement in 35 infants and children with pyogenic meningitis. Raised pressures were found in 33 children. The median pressure was 15 mm Hg (range 4-70 mm Hg) in all age groups. The pressure level varied throughout the infection, but a higher median pressure (19 mm Hg) was found when...
متن کاملCerebrospinal Fluid Pressure and Glaucoma
Eyes with normal-pressure glaucoma and those with high-pressure glaucoma can show a similar optic nerve head appearance, while eyes with vascular optic neuropathies show a markedly different optic disc appearance. Factors in addition to intraocular pressure (IOP) may thus play a role in the pathogenesis of glaucomatous optic neuropathy. Clinical and experimental studies showed that (1) physiolo...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1912
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1912.tb03551.x