Corneomandibular reflex!!!
“there is hardly a more valuable test than this to uncover a supranuclear lesion of the trigeminal nerve”
Russian neurologist Robert Wartenberg (1887–1956)
#MedTwitter #neurotwitter #EndNeurophobia #tweetorials
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“there is hardly a more valuable test than this to uncover a supranuclear lesion of the trigeminal nerve”
Russian neurologist Robert Wartenberg (1887–1956)
#MedTwitter #neurotwitter #EndNeurophobia #tweetorials
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History
1902 by German doctor Von Sölder
- first description, normal patients
1918 by German neurologist Ernst Trömner
- rediscovered the reflex
1948 by Russian neurologist Robert Wartenberg
- complete description
- ‘jaw wincking phenomenon’
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1902 by German doctor Von Sölder
- first description, normal patients
1918 by German neurologist Ernst Trömner
- rediscovered the reflex
1948 by Russian neurologist Robert Wartenberg
- complete description
- ‘jaw wincking phenomenon’
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Pathophysiology
Mesencephalic trigeminal nucleus
- there is an inhibitory interneuron ipsilateral motor nucleus of V CN
Lesions in cortico-pontine boundaries lesions
- inhibitory influence disappear
- massive activation of trigeminal motor neuron
doi.org/10.4103%2F0976…
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Mesencephalic trigeminal nucleus
- there is an inhibitory interneuron ipsilateral motor nucleus of V CN
Lesions in cortico-pontine boundaries lesions
- inhibitory influence disappear
- massive activation of trigeminal motor neuron
doi.org/10.4103%2F0976…
3/
Corneomandibular reflex
representation in pediatric and adult individuals
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representation in pediatric and adult individuals
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Corneomandibular reflex
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
5/
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
5/
Corneomandibular reflex
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
via: Neurology Made Interesting
6/
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
via: Neurology Made Interesting
6/
Corneomandibular reflex
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
via: JAMA Network
7/
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
via: JAMA Network
7/
Corneomandibular reflex
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
youtube.com/shorts/jaxIwN-… via: Primeesha Medical Zone
8/
“stimulation of cornea causes contralateral movement of the mandible”
- usually associated movement > reflex
- supranuclear interruption of ipsilateral corticotrigeminal tract
- ALS
youtube.com/shorts/jaxIwN-… via: Primeesha Medical Zone
8/
Other frontal release signs
Palmar grasp, palmomental, rooting & sucking, snout, glabellar, and head retraction reflex
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Palmar grasp, palmomental, rooting & sucking, snout, glabellar, and head retraction reflex
https://twitter.com/theneurolander/status/1592924351640530944
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