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KMID : 0438219720090010235
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Korea University Medical Journal
1972 Volume.9 No. 1 p.235 ~ p.242
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Urine Flow Rate and Oxygen Consumption in the Tubules of Goldfish Kidney
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Abstract
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Studies of the Flow-rate of urine along the renal tubule from the gold fish were done.
A drop of mineral oil stained with sudan Ⅱ was injected into a single renal tubule by means of micropipette with a tip diameter of about 2 u.
Oxygen consumption of renal tissue taken from either cephalic portion or caudal portion of the kidney was measured with Warburg manometric apparatus.
The results were summarized as follows:
1. A drop of mineral oil injected into the renal tubule moved toward collecting duct with. a speed ranging from 10.98.μ/min to 157μ/min.
2. Flow rate in isolated single tubules was higher than that of non-isolated tubule.
3. Flow rate was found to be higher in the tubules where flagella movement was active.
4. Droplets of mineral oil injected into the tubular cells were secreted actively into tubular lumen.
5. Oxygen consumption of the kidney slices were found to be increased as concentration of NaCl
increased i, e, oxygen consumption was highest in hypertonic solution and lowest in hypotonic solution.
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KEYWORD
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