- CNS), most likely in a part of the CNS called the pyramidal tract. Asymmetry of the toe sign — when it is present on one side but not the other — is abnormal. It is a sign not merely of trouble but helps to lateralize that trouble (tell which side of the CNS is involved). The toe sign is known by a number of other names: the plantar response (because the sole is the plantar surface of the foot), the big toe sign or phenomenon, the Babinski phenomenon or sign. (The Babinski sign is referred to as either present or absent). Babinski, despite the Slavic sound of the name, was French: Joseph Francois Felix Babinski (1857-1932). His name will not be soon forgotten in medicine, thanks to the sign he described.
* * *Babinski reflex.
Medical dictionary. 2011.
Look at other dictionaries:
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