Dr. D Modules Flashcards
olive
source of climbing fibers
pons
source of mossy fibers
Parkinson’s
bradykinesia
Huntington’s
chorea
subthalamic nucleus lesion
hemiballismus
cut superior longitudinal fasciculus
global aphasia
lesions Brocca’s area (44,45)
expressive or motor aphasia
forehead spared
unilateral cerebral stroke
total unilateral facial paralysis
cut 7 on one side
total bilateral facial paralysis
ALS
cannot feel sand in eye
cut 5
mlf lesion
intranuclear opthalmoplegia
moves eye up and out, test by looking medially–then up
inferior oblique
moves eye down and out, test by looking medially–then down
superior oblique
jaw jerk
mesencephalic N of 5
proprioception
chief or principal N of 5
pain and temperature
spinal 5
VPL
STT, DCP
VPM
trigeminal stuff
crossed sensory signs
Wallenberg lesion
can cause paralysis
cut artery of Adomkowicz
syringomelia
vestd sensory loss
Brown-Sequard
ipsi loss of DCP info, contra STT loss below lesion
MLF lesions
MS
tabes dorsalis
syphillis
anterior horn cell loss
polio
loss of hearing
acoustic neuroma
double vision
myasthenia gravis
DCP
- medial lemniscus
- vibration
- 2-pt discrimination
- proprioception
STT
nucleus proprius; pain and temp
DSCT
Clark’s nucleus
VSCT
superior cerebellar peduncle
CST
anterior horn cells
pseudounipolar cells
DRG
pain fibers
UMN signs
- positive Babinski
- hyperreflexive
- spastic
- weak
LMN signs
- paralysis
- hyporreflexive
- atrophy
- fasciculations
- fibrillations
uncal herniation
3rd nerve lesion
hyperphagia
excessive eating
loves cats too much
Kluver-Bucy syndrome
Meyer’s loop
quadrantonopia-pie in the sky
Alzeimer’s
hippocampal lesion
degenerates in Wernicke’s-Korsakoff
mammilary bodies
Horner’s syndrome
- miosis
- ptosis
- anhydrosis
impaired vestibulo-ocular reflex
vision deteriorates with quick side to side movements
intention tremor
cerebellar lesion
grand mal seizure
- bilateral
- vigorous
- rhythmic
- tonic-clonic contractions
- loss of consciousness
general non-convulsive seizures (absence)
brief staing spells with 3Hz spikes on EEG
Disdiachokinesia
inability to flip hand up and down quickly (cerebellum problem)
Intention tremor
cerebellum
resting tremor
basal ganglia problem
purkinje cell
inhibits dentate nucleus
apraxia
cannot put on shirt
dysarthria
speech problem
medulloblastoma
common childhood tumor in midline cerebellum
dystonia
incapacitation by spontaneous muscle contractions
Locus ceruleus
NE
Raphe
serotonin
Nucleus basalis
ACh
substantia nigra
Dopamine
Peri-aqueductal gray
Substance P
Suprachiasmatic nucleus
biological clock
ALS
- cramps
- generalized muscle weakness
- brisk reflexes
- slower speech
Huntingtons
- nucleotide repeats
- problem with INDIRECT pathway
hemiballismus
subthalamic nucleus
Parkinsons
problem with DIRECT pathway
meningitis
nuchal rigidity
SAH (sub-arachnoid hemorrhage)
pain upon moving patient’s neck
Uncal herniation
crushes 3
Trigeminal neuralgia
sca
acute blood on CT
white (hyperdense)
H2O on T2
white-ish
lesion nucleus ambiguus
hoarse voice
STT
tract crossing in cord
DCP
tract crossing in medulla
DSCT
tract never crossing