Abstract
THE tails of spermatozoa were generally thought to be radially symmetrical; although Randall and Friedlaender1 have shown that the tails of ram spermatozoa are elliptical and slightly flattened, this may have been due to the drastic treatment necessary for inspection by electron microscopy. Challice2, however, has produced more convincing evidence in the case of the mouse. He cut transverse sections of the spermatozoa tails, which, examined with an electron microscope, showed them to consist of a core of fibrils flanked by two ridges each composed of a single lateral fibril.
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References
Randall, J. T., and Friedlaender, M. H. G., Exp. Cell. Res., 1, 1 (1950).
Challice, C. E., Proc. Soc. Study Fert., 4, 21 (1952).
Hancock, J. L., Nature, 167, 323 (1951).
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DOTT, H. Dark-Ground Illumination of Ram Spermatozoa. Nature 172, 626 (1953). https://doi.org/10.1038/172626a0
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DOI: https://doi.org/10.1038/172626a0
