GA2 midterm 1 Flashcards
what are the 3 divisions of the trigeminal nerve?
ophthalmic, maxillary, and mandibular
what nerves are in the opthalmic division of the trigeminal
supraorbital, supratrochlear, palpebral branch of lacrimal, infratrochlear, ext nasal branch of ant ethmoidal
what nerves are in the maxillary division of the trigemenial n?
infraorbital, zygomaticofacial, zygomaticotemporal
what nerves are in the mandibular division of the trigeminal n?
mental, buccal, and auriculotemporal
what is the bregma?
where the coronal suture and saggital suture
what is the location of the pituitary gland
hypophysial fossa
what exits the foramen rotundum?
maxillary nerve of trigeminal
what exits the foramen ovale?
mandibular n,
accessory meningeal artery
lesser petrosal n.
what exits the foramen spinosum?
meningeal branch of mandibular n
middle meningeal artery and vein
what exits the foramen lacerum?
greater petrosal n.
what exits the carotid canal?
internal carotid n. plexus
internal carotid artery
what exits the internal acoustic meatus?
facial n
vestibulocochlear n
labyrinth artery
what exits the mastoid foramen?
emissary vein
what exits the jugular foramen?
glossopharyngeal n, vagus n accessory n posterior meningeal artery inferior petrosal and sigmoid sinuses
what exits the foramen magnum?
medulla oblongata meninges spinal roots of accessory n vertebral artery meningeal branches of vertebral artery
what exits the foramen cecum?
emissary vein to superior sagittal sinus
what exits foramina of cribiform plate?
olfactory n
what exits the optic canal?
optic n
ophthalmic artery
what exits the superior orbital fissure?
occulomotor n trochlear n branches of ophthalmic n abducens n superior ophthalmic vein
what exits the incisive fossa?
nasopalatine n
sphenopalatine vessels
what exits the petrotympanic fissure
chorda tympani of facial nerve
what exits the tympanic canaliculus?
tympanic branch of glossopharyngeal nerve
what exits the mastoid canaliculus?
auricular branch of vagus
what exits the condylar canal?
emissary vein
meningeal branch of ascending pharyngeal artery
what provides sva fibers for the anterior 2/3 of the tongue
geniculate ganglia
what type of nerve fibers does the greater petrosal nerve contain?
pre gg. PS
secretomotor
what type of nerve fibers does the deep petrosal nerve contain?
pst gg symp
its a branch of internal carotid sympathetic plexus
what does the nerve to ptyergoid canal contain?
pre gg PS
what does the ptyergopalatine ganglion contain?
post gg for the lacrimal, palatine and mucosal glands
what does the chorda tympani exit through?
petrotympaninc fissure
what does the otic ganglia supply
SVE for muscle of mastication
where does sensory buccal suppy come from?
mandibular from trigmeninal
where does motor supply for buccal nerve come from
facial nerve
what are the four sensory nerves from the mandibular division of trigeminal
posterior division of mandibular nerve
auricolotemporal (post gg PS)
lingual GSA (meets with chorda tympani. TOCUH TEMP, PAIN.
chorda tympnai gives the taste to the lingual nerve.
inferior alveolamentalr (mandibular foramen) gives off nerve to myohyoid which is sensory.
inf alveolar becomes
where does inferior alveolar enters thru mandibular foramen and exits thru?
mental foramen, then becomes ,mental n.
sensory lower lip and chin
4 motor from ant mandibular n
post and ant deep temporal
masseteric
lateral ptyergoid
BALI is the acronym for the sensory supply of the mandibular and it stands for
B- buccal (from ant division of mandibular) A- auriculotemporal L- lingual I- inferior alveolar (all from post division of mandibular
what is the dural sinus drainage order
transverse and superior sagittal sinus> sigmoid sinus> int jugular vein
what does the neurocranium protect
cartilaginous, from occipital somites and it protects brain
what does the viscerocranium make?
its membranous, comes from ectoderm via the neural crest. it is the skeleton of the face
what is formed by the 1st pharyngeal arch?
mostly front of face and mouth maxillary mandible ear bone (malleus and incus) muscles of mastication tympani, mylohyoid and ant digastric mandibular division of trigeminal
what comes from the 2nd pharyngeal arch?
more post areas stapes hyoid, styloid process muscles of facial expression, post digastric, stylohyoid and stapedius facial nerve