“Westphal's sign”的意思、由来-开放百科全书

词条

Westphal's sign

释义

Associated conditions
References

Westphal's sign is the clinical correlate of the absence or decrease of patellar reflex or knee jerk. Patellar reflex or knee jerk is a kind of deep or stretch reflex where an application of a stimulus to the patellar tendon such as strike by a solid object or hammer caused the leg to extend due to such stimulus causes the quadriceps femoris muscle to contract.

It is named for Carl Friedrich Otto Westphal (1833-1890).^[1]^[2]

Associated conditions

Westphal's sign has a clinical significance used in determining neurodisorders or diseases such as:

receptor damage, peripheral nerve disease, involving the dorsal(sensory) columns of the spinal cord and cerebellar lesions
lesions present within the motor cortex of the brain or the pyramidal tracts which it combined with muscular spasms{{clarify|date=September 2011}}
complete interruption of sensory and/or motor impulse transmission in the femoral nerve

References

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2. ^C. F. O. Westphal. Über einige durch mechanische Einwirkung auf Sehnen und Muskeln hervorgebrachte Bewegungs-Erscheinungen. Archiv für Psychiatrie und Nervenkrankheiten, Berlin, 1875, 5: 803-834.

* The Principles of Physiology Jensen, David Ph.D., Appleton-Century-Crofts, New York.1976

1 : Symptoms and signs: Nervous system

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