Tests examining jaw jerk and gag reflex can also be performed.
2.
The jaw jerk reflex can be classified as a dynamic stretch reflex.
3.
In other words, a normal jaw jerk reflex points the diagnosis toward cervical spondylotic myelopathy and away from MS or ALS.
4.
The jaw jerk reflex is an example; tapping the jaw elicits a reflex closure of the jaw in the same way that tapping the knee elicits a reflex kick of the lower leg.
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