Sensory CNs Flashcards
describe the somatopy of CNs of the spinal nucleus of V
Dorsal to medial: (CNs VII, IX, X), then V3, then V2, then V1
where are the primary cell bodies of afferents for fine touch and vibration sense for CN VII?
geniculate ganglion
where are the primary cell bodies of afferents for fine touch and vibration sense for CN V?
trigeminal ganglion
where are the primary neuron cell bodies for fine touch and vibration sense for CN IX?
inferior and superior glossopharyngeal ganglia for CN IX
where are the primary neuron cell bodies of afferents for fine touch and vibration sense for CN X?
inferior and superior vagal for CN X
where do the central processes of the primary afferents for fine touch and vibration project to in the face? (regarding V, VII, IX, X)
these primary neurons project to the chief sensory nucleus of V
the second order projections from the chief sensory of nucleus of V (fine touch and vibration) cross the midline and travel in what on their way to the VPM in the thalamus?
Trigeminal lemniscus
what are the 4 CNs that contribute to the spinal nucleus of V?
V, VII, IX, X
Where are the cell bodies of primary neurons of pain and temp for CN V?
trigeminal ganglion
where are the primary cell bodies of neurons for pain and temp for CN VII?
geniculate ganglion
where are the primary cell bodies of neurons for pain and temp for CN IX?
inferior and superior glossopharyngeal ganglia
where are the primary cell bodies of neurons for pain and temp for CN X?
inferior and superior vagal ganglia
the central processes of primary neurons for pain and temperature afferents project in what structure on the way to the spinal nucleus of V?
spinal tract of V
the second order projections carrying pain and temperature from the spinal nucleus of V cross the midline and travel in what structure on their way to the VPM?
trigeminothalamic tract
