schizotonia

Division of the distribution of tone in the muscles. [schizo- + G. tonos, tension, tone]

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schizo·to·nia (skiz″o-toґne-ə) [schizo- + ton- + -ia] division of the influx of tone to the muscles, so that, for instance, in the upper limbs the flexors become hypertonic, while in the lower limbs the extensors become hypertonic.