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Mendel's reflex

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Tapping the dorsum of foot (area of n Os cuboideum and Os cuneiforme) normally causes extension of 2nd-5th toes. A pyramidal lesion is characteristic by flexion.

Bekhterev described the reflex as early as 1901 in: Ber. der wissenschaftlichen Versammlung der Ärzte d psych und Nervenklinik zu St. Petersburg 1900/1901: 44.


  • K. Mendel:
    Ein Reflex am Fussrücken.
    Neurologisches Centralblatt, Leipzig, 1904, 23: 197-198, 610.
  • W. M. von Bekhterev:
    Über einen besonderen Beugereflex -- Zehen.
    Neurologisches Zentralblatt, Leipzig, 1904, 23: 197-198, 609.

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