Abstract
Is the buccal cavity of the frog a respiratory chamber? In a letter to NATURE, March 24, Mr. M. D. Hill accepts this conception of it, and yet the only evidence which can be offered in support of this view is the rich blood supply of its lining membrane. The lungs and skin, which are known to be respiratory surfaces, are supplied by a special circulation; the buccal cavity is neither more nor less supplied with blood than the other parts of the alimentary tract, which are certainly not respiratory.
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KEITH, A. Respiration in Frogs. Nature 69, 511–512 (1904). https://doi.org/10.1038/069511b0
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DOI: https://doi.org/10.1038/069511b0
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