NURS 5357 NeURobiology exam 4 | exam laTeST 2026 aCTUal
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What brain area is associated with working memory in ADHD? - ANSWER-
Prefrontal Cortex
Which brain area is linked to temporal processing in ADHD? - ANSWER-
Cerebellum
What is the role of the nucleus accumbens in ADHD? - ANSWER-It is
associated with delay of gratification.
What compensatory change occurs in the parietal cortex of children who
outgrew ADHD? - ANSWER-Normalization of gray matter thickness.
How do ADHD symptoms change from childhood to adulthood? - ANSWER-
Symptoms may diminish or change in presentation as individuals mature.
What impact does trauma have on the prefrontal cortex? - ANSWER-It
impairs working memory.
What is the effect of stimulant medication on dopamine in ADHD? -
ANSWER-It increases dopamine release at the nucleus accumbens,
improving impulse control.
What happens to the total brain volume in children with ADHD? - ANSWER-It
is approximately 5% smaller across all cerebral lobes.
, What is the primary pathological finding in Alzheimer's dementia? -
ANSWER-Cortical atrophy and neuronal loss.
What are amyloid plaques and their significance in Alzheimer's? - ANSWER-
They are extracellular deposits of beta-amyloid protein that contribute to
neuronal damage.
What causes neurofibrillary tangles in Alzheimer's disease? - ANSWER-
Hyperphosphorylation of tau proteins leads to their detachment from
microtubules, forming tangles.
What is the hallmark sign of Alzheimer's disease? - ANSWER-Shrinkage of
cortical tissue due to neuronal cell death.
How does drug abuse affect the nucleus accumbens? - ANSWER-Chronic
cocaine use downregulates dopamine receptors in the nucleus accumbens.
What is the role of the anterior cingulate cortex in ADHD? - ANSWER-It is
involved in emotional regulation and impulse control.
How does the orbitofrontal cortex relate to ADHD? - ANSWER-It has
important projections to the nucleus accumbens, influencing attention and
reward processing.
What is the effect of aging on dopamine transporter density in ADHD? -
ANSWER-Dopamine transporter density declines with age, affecting impulse
control.
QUeSTioNS aND VeRiFieD aNSWeRS (laTeST UpDaTe) a+
gRaDe 100% gUaRaNTee VeRiFieD by expeRTS
What brain area is associated with working memory in ADHD? - ANSWER-
Prefrontal Cortex
Which brain area is linked to temporal processing in ADHD? - ANSWER-
Cerebellum
What is the role of the nucleus accumbens in ADHD? - ANSWER-It is
associated with delay of gratification.
What compensatory change occurs in the parietal cortex of children who
outgrew ADHD? - ANSWER-Normalization of gray matter thickness.
How do ADHD symptoms change from childhood to adulthood? - ANSWER-
Symptoms may diminish or change in presentation as individuals mature.
What impact does trauma have on the prefrontal cortex? - ANSWER-It
impairs working memory.
What is the effect of stimulant medication on dopamine in ADHD? -
ANSWER-It increases dopamine release at the nucleus accumbens,
improving impulse control.
What happens to the total brain volume in children with ADHD? - ANSWER-It
is approximately 5% smaller across all cerebral lobes.
, What is the primary pathological finding in Alzheimer's dementia? -
ANSWER-Cortical atrophy and neuronal loss.
What are amyloid plaques and their significance in Alzheimer's? - ANSWER-
They are extracellular deposits of beta-amyloid protein that contribute to
neuronal damage.
What causes neurofibrillary tangles in Alzheimer's disease? - ANSWER-
Hyperphosphorylation of tau proteins leads to their detachment from
microtubules, forming tangles.
What is the hallmark sign of Alzheimer's disease? - ANSWER-Shrinkage of
cortical tissue due to neuronal cell death.
How does drug abuse affect the nucleus accumbens? - ANSWER-Chronic
cocaine use downregulates dopamine receptors in the nucleus accumbens.
What is the role of the anterior cingulate cortex in ADHD? - ANSWER-It is
involved in emotional regulation and impulse control.
How does the orbitofrontal cortex relate to ADHD? - ANSWER-It has
important projections to the nucleus accumbens, influencing attention and
reward processing.
What is the effect of aging on dopamine transporter density in ADHD? -
ANSWER-Dopamine transporter density declines with age, affecting impulse
control.
