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PRITE EXAM QUESTIONS AND ANSWERS
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PRITE EXAM QUESTIONS AND ANSWERSNeural plasticity largely mediated through the capacity to rapidly change in number and
morphology of?
DENDRITIC SPINES
The uncinated fasciculus connects which of the following brain areas?
ANTERIOR TEMPORAL AND VENTRAL PRE-FRONTAL REGIONS
Brainpower
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Abnormal emotional expressions such as pathological laughter or crying caused by
lesions affecting cortical subcortical circuits linking:
CEREBELLUM
FRONTAL CORTEX
and
PONS
Exposure to light effects which brain structure?
SUPRACHIASMATIC NUCLEUS
,Where does the neuron morphology in the brain change the most?
PREFRONTAL CORTEX
17y/o is evaluated for binge eating associated with a 60 lb weight gain over the past
four months. CT shows a craniopharyngioma that likely disrupts what structure? [be
SPECIFIC]
VENTROMEDIAL HYPOTHALAMUS
What is an accurate statement about the brain's default mode network?
IS INVOLVED IN REPROCESSING PREVIOUSLY EXPERIENCED STIMULI
Most likely reason that adults are superior to adolescents in abstract thinking?
The brain undergoes: SYNAPTIC PRUNING
Dorsal-lateral-pre-frontal cortex plays important role in what activity?
WORKING MEMORY
Drug abuse activates neuro circuits. Generates signals in the ventral tegmental area
and to where?
DOPAMINE INTO THE NUCLEUS ACCUMBENS
,Ninety-five percent of right-handed people develop left hemispheric dominance for
language. What percentage of left handed people develop left hemispheric dominance
for language?
75%
28 y.o. hospitalized with paranoid delusions, AH, and agitation, tx w/Haldol 5, pt
becomes rigid & mute, in days gets choreiform mvmt, has seizures, gets resp problems
leading to ICU admit. Exam shows ovarian mass. CSF will show antibodies to?
NMDA RECEPTORS
Role of glycine at NMDA receptor?
OBLIGATE COAGONIST
What is the 5HT3 receptor classification?
LIGAND GATED
Pain by neurogenic inflammation mediated by?
SUBSTANCE P
Unsteady gait, appendicular ataxia in LE only and normal eye movement. Walks with
lurching broad based gait. (8x)
CEREBELLAR DEGENERATION (ALCOHOLIC)
, 9 y/o F has 3 month h/o seemingly unprovoked bouts of laughter. Worse when not
sleeping well. Pt does not feel happy during these episodes. Started menstruating 6
months ago, and at Tanner stage 4. Dx? (2x)
HYPOTHALAMIC HAMARTOMA
Young adult gained 70 lbs in last year c/o daily severe headaches sometimes
associated with graying out of vision. Papilledema present. CT and MRI brain no
abnormalities but ventricles smaller than usual. Goal of treatment in this case:
PREVENT BLINDNESS
Pt presents with a slowly progressive gait disorder, followed by impairment of mental
function, and sphincteric incontinence. No papilledema or headaches are reported.
Likely diagnosis? (3x)
NORMAL PRESSURE HYDROCEPHALUS
Tremor with a frequency of around 3 Hz, irregular amplitude, most evident towards the
end of reaching movements: (2x)
CEREBELLAR TUMOR
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