Bekhterev–Jacobsohn reflex

Bekhterev–Jacobsohn Reflex

The Bekhterev–Jacobsohn reflex is a neurological phenomenon observed in certain pathological conditions affecting the central nervous system. It is named after the Russian neurologist Vladimir Bekhterev and the German neurologist Ludwig Jacobsohn, who contributed to its identification and description.

Description

The Bekhterev–Jacobsohn reflex is characterized by an involuntary contraction of the muscles in response to a specific stimulus. This reflex is typically elicited by tapping or stroking the skin overlying certain muscle groups, leading to a contraction of those muscles. It is considered a pathological reflex, meaning it is usually absent in healthy individuals and may indicate underlying neurological disorders.

Clinical Significance

The presence of the Bekhterev–Jacobsohn reflex can be indicative of lesions in the pyramidal tract, which is part of the motor pathway in the central nervous system. Such lesions can occur due to various conditions, including stroke, multiple sclerosis, or other forms of central nervous system damage. The reflex is often assessed as part of a comprehensive neurological examination to help localize the site of a lesion and to understand the extent of neurological impairment.

Historical Background

Vladimir Bekhterev was a pioneering neurologist who made significant contributions to the understanding of the brain and nervous system. His work laid the foundation for many modern neurological practices. Ludwig Jacobsohn, a contemporary of Bekhterev, also contributed to the study of reflexes and their clinical implications. Together, their research helped to identify and describe this specific reflex, which bears their names.

Examination Technique

To test for the Bekhterev–Jacobsohn reflex, a clinician will typically use a reflex hammer or similar instrument to gently tap the skin overlying the muscle group of interest. The response is observed and noted. A positive Bekhterev–Jacobsohn reflex is indicated by a visible contraction of the muscle, which may suggest an abnormality in the central nervous system.

Also see

• Babinski sign
• Hoffmann's reflex
• Pyramidal tract
• Neurological examination

edit 

WikiMD neurology

External links

• Comprehensive information from the National Institute of health.
  

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z