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Cranial Nerve I
Olfactory
sensory
olfactory bulb
olfactory mucosa (sense of smell)
Cranial nerve II
Optic nerve
sensory organs
optic chiasm/thalamus
eye (sense of vistion)
Cranial nerve III
Oculomotor
motor
midbrain
motor control of eye muscles except below
Cranial nerve IV
Trochlear
motor
midbrain
motor control of oblique muscles of eye (down and in, crossed eyes)
Cranial nerve V
Trigeminal
both sensory and motor
pons
sensory for face, motor control of tongue, jaw (chewing)
Cranial nerve VI
Abducens
motor
pons/medulla
motor control of abducens of eye (lateral movement of both eyes)
Cranial nerve VII
Facial/intermediate
both sensory and motor
pons/medulla
sensory for tongue/palate (taste) and motor control of facial muscles, salivary and tear glands
Cranial nerve VIII
vestibulocholear
sensory
pons/medulla
sensory for ear hearing, balance
Cranial nerve IX
glossopharyngeal
both sensory and motor
medulla
sensory for tongue (taste) and visceral sensations of blood pressure and gases
motor from tongue/pharynx (speech + swallowing)
Cranial nerve X
Vagus
both sensory and motor
medulla
major parasympathetic nerve to visceral, sensory for viscera of thoracic and abdominal, effector for digestive, excretory, cardiovascular, and respiratory control
Cranial nerve XI
accessory
motor
spinal cord/medulla
medullary portions are now considered part of vagus
spinal portions innervate muscles of neck and shoulders
Cranial nerve XII
hyperglossal
motor
medulla
motor control of tongue and upper digestive for swallowing, speech

134
traverse process

250
epidural space

249/235
spinal meninges

279
denticulate ligament

244
gray matter

243/225
central spinal canal

245
white matter

23/252
vertebral cavity

133
spinous process

251/225
subarchnoid space

272
dorsal roots

273
dorsal root

274
dorsal root ganglion

282
Rami communicantes

246
dorsal horn

280/281
sympathetic ganglion

276
ventral root

247
lateral horn

275
ventral rootlet

248
ventral horn

135
body of vertebrae