Definition of "Jaw jerk reflex"

Last modified: 6 days

Stretch reflex which tests the trigeminal nerve CN5. The mandible (lower jaw) is tapped just below the lip, while the mouth is held slightly open. This should cause the mandible to jerk upwards slightly or not at all.

In Pt's with UMN lesion, the jaw jerk can be quite pronounced.    

Find a practitioner

Practitioner count: 0
Sponsor a disease. And see how your proceeds help.
Express interest
Write text
Write FAQ
Snap photos
Record audio
Produce video
Interview experts

Definition of Jaw jerk reflex | Autoprac

RSS feeds: Most recent Most viewed