Clinical correlations - Notes (all sections) Flashcards
Damage to dorsal and ventral cochlear nuclei sx
deafness in ipsilateral ear
deafness in ipsilateral ear
X dorsal and ventral cochlear nuclei in medulla X auditory portion of CN 8
damage to vestibular nuclei (in medulla)
nystagmus, vertigo, problems with balance
loss of gag reflex on the affected side
CN 9 X
CN 10 damage sx
- hoarseness due to loss of control of larynx
- problems swallowing
- asymmetry of soft palate
Why is bilateral loss of CN 10 devastating?
choking (nucleus ambiguus) loss of parasymp. control to the heart and gastrointestinal tract (nucleus ambiguus and dorsal motor nucleus of CN 10).
CN 11 damage sx
- inability to elevate ipsilateral shoulder 2. difficulty to turn head 3. fasciulation and atrophy of sternomast. and trapezius
CN 12 damage sx
- deviation of tongue towards side of weakness 2. paralysis of ipsilateral tongue muscles 3. fasciulations and atrophy of tongue muscles ipsilaterally
Loss of discrete somesthetic infromation on same side of the lesion
damage to both the DORSAL FUNICULUS and DORSAL PART OF LATERAL FUNCIULUS

Before they cross, axons of the anterolateral system usually pass through the ____
lissauer’s tract
Axons of the anteriolateral system cross in the _____
anterior white commisure
dissociated sensory loss is a symptom of dmaage to the ____
spinal cord pain and temp is on one side, fien touch, vibration, and joint position on another
damage to this pathway anywhere at its length can cause horners syndrome
hypothalmoreticulospinal pathway
termination of the hypothalmoreticulospinal pathway
interomediolateral cell column
cause of flaccid muscle, hypothonia, hyporeflexic, fascuulations
lesion of peripheral nerve, or early UMN X
UMN injury involves damage to the
brains descending motor pathways
what can happen early with UMN injury?
flaccid paralysis, then become hyperreflic and hyerptonic (spastic paralysis)
positive bainksi response is seen with
UMN injury
The Babinski response (positive Babinski reflex) is seen again with ____ tract damage
corticospinal, since the corticospinal tract is no longer surpressing spinal reflex
Pinealoma sx?
- Problems sleeping - Tinnitis (? X inferior olive) - Papilledemia (hydrocephalus by blocking the cerebral aqueduct)
ddK is _____ injury
lateral cerebellar
nystagmus, balance problems, wide based gait can be explained by ____ injuey
medial cerebellar injury
intention tremor is ____ injury
lateral cerebellar
pupillary light reflex is mediated by ____ areas
pretectal areas










