Summary
The flow velocity profile in the venule of frog web was measured by using a laser Doppler microscope of a crossed-beam which permitted a measurement of flow velocity in a clearly defined small volume. The flow velocity profile in the venule seems to deviate slightly from the Newtonian parabola.
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References
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Koyama, T., Mishina, H. & Asakura, T. A study of micro-circulation in web of frog (Xenopus laevis Daudin) by using Laser Doppler microscope. Experientia 31, 1420–1422 (1975). https://doi.org/10.1007/BF01923222
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DOI: https://doi.org/10.1007/BF01923222