Babinski sign
Babinski sign
The Babinski sign (pronunciation: /bæˈbɪnski/), also known as the Babinski reflex, is a neurological examination tool used to assess the integrity of the central nervous system. It is named after the French neurologist Joseph Babinski, who first described the phenomenon in 1896.
Etymology
The term "Babinski sign" is derived from the name of its discoverer, Joseph Babinski. The word "sign" in this context is used to denote a clinical indication or symptom.
Definition
The Babinski sign is a pathological reflex that is elicited by stroking the lateral aspect of the sole of the foot. The normal response in adults is a downward flexion of the toes (negative Babinski sign). However, an upward extension of the big toe, often accompanied by fanning of the other toes, is considered a positive Babinski sign, which is abnormal in adults and may indicate damage to the central nervous system.
Related Terms
- Reflex: An automatic and rapid response to a stimulus.
- Neurological examination: A series of tests conducted by a neurologist to assess the functioning of the nervous system.
- Central nervous system: The part of the nervous system that includes the brain and spinal cord.
See Also
References
External links
- Medical encyclopedia article on Babinski sign
- Wikipedia's article - Babinski sign
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