sensory innervation of HN Flashcards
mechanosensory information from V goes to which nucleus?
chief sensory
mechanosensory information from IX, X goes to which nucleus?
nucleus of solitary tract
proprioceptive information from V goes to which nucleus?
mesencephalic (for masticatory and peridontal muscles) and chief sensory (for jaw)
thermal information from V goes to which nucleus?
spinal
nociceptive information from V goes to which nucleus?
spinal
the sensation of taste comes from which nerves
VII anteriorly and IX posteriorly
what is scarpa’s ganglion for
is the nucleus for the VIII cranial nerve carrying vestibular information
which branches of the trigeminus are sensory and which are motor?
V1, V2 are purely sensory and V3 is sensory and motor
through which foramen do the branches of V leave the skull?
V1 - superior orbital fissure
V2 - foramen rotundum
V3 = foramen ovale
where do the branches of the V meet?
on the trigeminal ganglion (aka semi-lunar or Gasser ganglion) which is in meckel’s cavity
where does the sensory division of V originate from
cranial neural crest
where does the motor division of V come from
the basal plate of the embryonic pons
detail the divisions of the spinal nucleus and what infor they are for
pars oralis - info on the location of pain sends to thalamus and somatosensory cortex.
pars interpolars - for movement control, sends to thalamus and anterior lobe of cerebellum
pars caudalis - to generate arousal sends to ventroposteromedial nucleus of the thalamus
whats the only structure inside the skull that can produce nociceptive information
meningeal vessels
explain nasal mucosa innervation
V1 for antero-superior part, V2 for posero-inferior part, spetum and lateral walls. the dorsum and the apex by V1, the ala by V2
