The extensor digitorum reflex is tested as part of the
neurological examination to assess the sensory and motor pathways within the C6 and C7
spinal nerves. It is also known as Braunecker-Effenberg reflex, or BER.
Testing
The test is performed by tapping the
extensor digitorum muscle while the fingers are light or half flexed. A sudden contraction of the musculus extensor digitorum and extension of the fingers indicate a normal reflex.
Absence of reflex
An absence of reflex can be an indicator for radiculopathy within the C6 and C7 or neuropathy within the
deep branch of the radial nerve
The radial nerve divides into a superficial (sensory) and deep (motor) branch at the cubital fossa. The deep branch of the radial nerve winds to the back of the forearm around the lateral side of the radius between the two planes of fibers of the S ...
.
References
External links
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Extensor-Digitorum-ReflexApplying the Extensor Digitorum Reflex to Neurological Examination
{{DEFAULTSORT:Extensor Digitorum Reflex
Reflexes