NURS 5357 NeURobiology exam 4 exam 2026 UPDate WitH
ComPlete QUeStioNS aND CoRReCt DetaileD aNSWeRS (VeRiFieD
aNSWeRS) |alReaDy gRaDeD a+|bRaND NeW VeRSioN!!
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.
What is the significance of tau proteins in neurons? - aNSWeR-They stabilize
microtubules and are essential for neuronal transport.
What imaging technique shows decreased energy and glucose metabolism in
Alzheimer's? - aNSWeR-PET scan.
What is the relationship between dopamine activity and impulsivity in ADHD? - aNSWeR-
Dopamine activity in the nucleus accumbens influences attention and impulsivity.
What is the role of norepinephrine in ADHD treatment? - aNSWeR-It helps with signaling
and blocking out irrelevant stimuli.
ComPlete QUeStioNS aND CoRReCt DetaileD aNSWeRS (VeRiFieD
aNSWeRS) |alReaDy gRaDeD a+|bRaND NeW VeRSioN!!
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.
What is the significance of tau proteins in neurons? - aNSWeR-They stabilize
microtubules and are essential for neuronal transport.
What imaging technique shows decreased energy and glucose metabolism in
Alzheimer's? - aNSWeR-PET scan.
What is the relationship between dopamine activity and impulsivity in ADHD? - aNSWeR-
Dopamine activity in the nucleus accumbens influences attention and impulsivity.
What is the role of norepinephrine in ADHD treatment? - aNSWeR-It helps with signaling
and blocking out irrelevant stimuli.
