Flashcards in Anatomy 3.7 Deck (58):
Which CNs emerge from the cerebral hemispheres (telencephalon)?
Which CNs emerge from the diencephalon?
Which CNs emerge from the midbrain?
Which CNs emerge from the pons?
Which CNs emerge from the ponto-medullary junction?
Which CNs emerge from the medulla?
IX, X, XII
Which CNs emerge from the superior spinal cord?
Which bones make up the anterior cranial fossa?
Which bones make up the middle cranial fossa?
Which bones make up the posterior cranial fossa?
Where is the lesion in a bitemporal sight loss?
Which CNs pass through the superior orbital fissue?
Which CNs pass through the optic canal?
Which CNs pass through the interior orbital fissure?
Which muscles are innervated by CN III?
-levator palpebrae superioris
Which muscles are innervated by CN IV?
superior oblique [passes through trochlea "pulley"]
*down and out* muscle
Which muscles are innervated by CN VI?
What is the neumonic for CNs passing through the superior orbital fissure?
LR6 SO4 AO3
What is the danger tirangle of the face?
area which can drain back into cavernous sinus and cause brain infection
What is an early clinical presentation of a cavernous sinus infection?
abducens nerve palsy (lose lateral gaze)
Where does the trigeminal nerve pass through the skull?
superior orbital fissure (V-1)
foramen rotundum (V-2)
foramen ovale (V-3)
"standing room only"
opthalmic division of trigeminal
maxillary division of trigeminal
mandibular division of trigeminal
What is the sensory innervation of CN V-1?
-superior face and scalp
What is the sensory innervation of CN V-2?
-skin overlying maxilla
-maxillary teeth and sinuses
What is the sensory innervation of CN V-3?
-skin overlying mandible
-floor of mouth
What is the motor innervation of CN V-3?
muscles of mastication
-medial and lateral pterygoids
What is the terminal branch of CN V-1?
What is the terminal branch of CN V-2?
What is the terminal branch of CN V-3?
Where does CN VII pass in the skull?
in: internal acoustic meatus
out: stylomastoid foramen
Where does CN VIII pass in the skull?
internal acoustic meatus
What are the motor branches of CN VII?
"To Zanzibar By Motor Car"
Which glad does CN VII pass through?
carotid gland; passes through as a plexus
What is the special sensory of CN VII?
lingual nerve (blended from CN VII [taste] and V-3 [pain])
-chorda tympani from CN VII
What is the location of CN VIII?
petrous portion of temporal bone
What is the special sensation of CN VIII?
What is the motor innervation of CN IX?
What is the sensory innervation of CN IX?
carotid body and sinus
posterior 1/3 of tongue [taste and somatic sensation]
motor CN X
sensory CN X
epiglottis [taste and somatic sensation]
parasympathetic supply CN X
thoracic and abdominal viscera [smooth muscle, glands]
What is the motor innervation of CN XI?
Where does CN XI pass in the skull?
spinal accesory nerve
Where does CN XII pass in the skull?
Which CNs pass through the jugular foramen?
CN IX, X, XI
What is the motor innervation of CN XII?
tongue muscles except palatoglossus
What are the 4 ganglions of the CNs?