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RESEARCH PRODUCT
The pterygoid reflex in man and its clinical application
Hanns Christian HopfH. HundemerJens Ellrichsubject
AdultMaleReflex StretchPhysiologyElectromyographyNeurological disorderCellular and Molecular NeuroscienceTrigeminal Caudal NucleusMesencephalonReference ValuesPonsPhysiology (medical)medicineHumansStretch reflexSmall brainstemAgedBrain DiseasesBlinkingmedicine.diagnostic_testMasseter Musclebusiness.industryElectrodiagnosisPterygoid MusclesMean ageAnatomyMiddle Agedmedicine.diseaseMagnetic Resonance Imagingmedicine.anatomical_structureReflexMedial pterygoid muscleFemaleNeurology (clinical)Tomography X-Ray ComputedbusinessJaw jerk reflexBrain Stemdescription
A technique for eliciting and recording the stretch reflex (R) of the medial pterygoid muscle (Pter) is described. The latency was 6.9 ± 0.43 ms in 23 healthy volunteers (mean age 23.7 years) showing a side-to-side difference of 0.29 ± 0.21 ms. The PterR latencies were little shorter and side-to-side difference little greater than of the masseter reflex. Observations in 5 selected patients with small brainstem lesions suggest that the neurons of the PterR afferents form a cluster within the caudal portion of the trigeminal mesencephalic nucleus. Testing the masseter and pterygoid reflexes provides a more precise localization of small ponto-mesencephalic lesions. © 1992 John Wiley & Sons, Inc.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-11-01 | Muscle & Nerve |