Neuro VI Flashcards
(39 cards)
Some Say Money Matters But My Brother Says Big Boobs Matter Most
1 - sensory 2 - sensory 3 - motor 4 - motor 5 - both 6 - motor 7 - both 8 - sensory 9 - both 10 - both 11 - motor 12 - motor
trigeminal n
CN 5
mastication
face sensation
sense anterior 2/3 tongue
trochlear n
CN 4
motor to superior oblique of eye
nerve through parotid gland
facial n innervation of stapedius in ear
carotid body and sinus chemo/baroreceptors
glossopharyngeal
vagal nucleus
nucleus solitarius - sense - 7, 9, 10
nucleus ambiguus - swallowing - 9, 10, 11
dorsal motor nucleus - parasympathetics - 10
corneal reflex
in 5a
out 7 - temporal branch - orbicularis oculi
lacrimation reflex
in 5a
out 7
jaw jerk reflex
in 5c - muscle spindle of masseter
out 5c - motor masseter
pupil reflex
in 2
out 3
gag reflex
in 9
out 10
CN 5 motor lesion
jaw toward side of lesion
CN 10 lesion
uvula deviate away from lesion
weak side collapses
CN 11 lesion
weak turn head to C/L side (SCM)
shoulder droop side of lesion - trap
CN 12 lesion
LMN
tongue deviate toward side of lesion
lick your wound
cavernous sinus
collection either side of pituitary
from eye and superficial cortex to internal jugular vein
CN pass through
- 3, 4, 5a, 6 - SOF also**
- sometimes 5b
- postganglionic sympathetic fibers
- also - ICA pass through
cavernous sinus syndrome
variable ophthalmoplegia
loss corneal sensation
horner syndrome
decreased maxillary sensation
with pituitary mass
most susceptible - cranial nerve 6
middle ear
malleus
incus
stapes
inner ear
cochlea
low frequency - apex
high frequency - base
conductive hearing loss
bone > air - rinne
localize affected ear - weber
sensorineural hearing loss
bone
noise indue hearing loss
damage stereociliated cells - organ of corti
loss high frequency first
cholesteatoma
overgrowth desquamated keratin - in middle ear
conductive hearing loss
UMN facial n lesion
C/L paralysis lower face
upper spared - B/L UMN innervation
