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Components of cranial nerve V
3 sensory (GSA) and 1 motor (SVE) component
Ganglion/nuclei of CN V (4)
SVE - motor nucleus
GSA - trigeminal ganglion, spinal tract and nucleus
GSA - trigeminal ganglion, chief principal nucleus
GSA - mesencephalic nucleus
Function of trigeminal ganglion, spinal tract and nucleus?
Ipsilateral pain and temperature sensation to face, supratentorial dura
Function of trigeminal ganglion, chief principal nucleus? (3)
Vibration, proprioception, tactile discrimination of ipsilateral face
Function of mesencephalic nucleus? (2)
Unconscious proprioception of jaw; reflexive chewing
Other names for the trigeminal ganglion?
Gasserian ganglion or semilunar ganglion
Dysfunction of the trigeminothalamic tract results in what?
Ipsilateral loss of pain and temperature of the face
What makes the mesencephalic nucleus of CN V unique?
It is within the body of the midbrain and not a ganglion cell body
An upper motor lesion of the SVE component of CN V results in?
No significant weakness because of bilateral corticobulbar input
A lower motor neuron lesion of the SVE component of CN V results in?
Jaw deviating to the weak side
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