Cranial Nerve Sensory Nuclei Flashcards
nuclei location
where does the olfactory bulb and tract project to
areas near the uncus and amygdala
where does the primary visual pathway synapse
in the lateral geniculate nucleus
what does the pretectal nucleus do
processes afferent signals for visual reflexes
what are the nuclei associated with the trigeminal nerve
mesencephalic
principle sensory
spinal trigeminal
what is special about the trigeminal nerve nuceli
it is the only CN with nuclei that can be damaged at any level of the brainstem
what are some adjacent pathways of the trigeminal nerve nuclei
anterolateral system, rubrospinal tract, middle and inferior cerebellar peduncles
where are the cell bodies of the mesencephalic nuclei
midbrain, CNS
where is the mesencephalic nucleus located
what does it do
midbrain and rostral pons
proprioceptive info from the jaw
where is the principle sensory nucleus located
what does it do
lateral tegmentum of the mid-pons
light touch of face
where is the spinal trigeminal nucleus located
what does it do
dorsolateral region from mid-pons to C5 spinal level
receives info related to pain and temp of face
what are the nuclei associated with facial nerve
solitary
spinal trigeminal
principle sensory
what does the solitary nucleus do
receives taste info from CN VII, IX, X
mediates BP and HR by input from carotid body
receives visceral afferent info from the airways, lungs, heart, GI system, pharynx
what structures are adjacent to the solitary nucleus and tract
inferior cerebellar peduncle, vestibular nuclei, spinal nucleus/tract of trigem, dorsal motor nucleus of X, nucleus cuneatus
where is the solitary nucleus located
caudal pons/rostral medulla
what are the four vestibular nuclei
superior, inferior, lateral, medial
what structures are adjacent to the vestibular nuclei
inferior cerebellar peduncle, floor of 4th ventricle, solitary nucleus
vestibular pathways - originating nuclei
medial vestibulospinal - medial, superior, inferior
lateral vestibulospinal - lateral
vestibulocerebellar - medial, superior, inferior
vestibuloocular - all
cortical projections - all
where are the cochlear nuclei located
near the entrance of the nerve at the pontomedullary junction
each nuclei projects bilaterally
what nuclei are associated with CN IX and X
solitary
spinal trigeminal
principle sensory
what parts of the midbrain does the PCA supply
CN III and IV nucleus
Edinger-Westphal nucleus
mesencephalic nucleus
anterolateral system
medial lemniscus
trigeminal lemniscus
what parts of the rostral pons does the SCA and long circumferential supply
mesencephalic nucleus
medial, lateral, and trigeminal lemniscus
anterolateral system
superior cerebellar peduncle
what parts of the rostral pons does the basilar (short circumferential and paramedian) supply
corticospinal tract, pontine nuclei, medial longitudinal fasciculus
what parts of the caudal pons does the AICA supply
motor nucleus of trigeminal
principle sensory nucleus of trigeminal
spinal trigeminal nucleus
CN VI, VII, and VIII nuclei
solitary and salivary nuclei
anterolateral system
