NURS 5357 NEUROBIOLOGY EXAM 4
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+
What causes neurofibrillary tangles in Alzheimer's disease? -
ANSWERS-Hyperphosphorylation of tau proteins leads to
their detachment from microtubules, forming tangles.
What is the hallmark sign of Alzheimer's disease? -
ANSWERS-Shrinkage of cortical tissue due to neuronal cell
death.
How does drug abuse affect the nucleus accumbens? -
ANSWERS-Chronic cocaine use downregulates dopamine
receptors in the nucleus accumbens.
, What is the role of the anterior cingulate cortex in ADHD? -
ANSWERS-It is involved in emotional regulation and impulse
control.
How does the orbitofrontal cortex relate to ADHD? -
ANSWERS-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? - ANSWERS-Dopamine transporter density
declines with age, affecting impulse control.
What is the significance of tau proteins in neurons? -
ANSWERS-They stabilize microtubules and are essential for
neuronal transport.
What imaging technique shows decreased energy and
glucose metabolism in Alzheimer's? - ANSWERS-PET scan.
What is the relationship between dopamine activity and
impulsivity in ADHD? - ANSWERS-Dopamine activity in the
nucleus accumbens influences attention and impulsivity.
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+
What causes neurofibrillary tangles in Alzheimer's disease? -
ANSWERS-Hyperphosphorylation of tau proteins leads to
their detachment from microtubules, forming tangles.
What is the hallmark sign of Alzheimer's disease? -
ANSWERS-Shrinkage of cortical tissue due to neuronal cell
death.
How does drug abuse affect the nucleus accumbens? -
ANSWERS-Chronic cocaine use downregulates dopamine
receptors in the nucleus accumbens.
, What is the role of the anterior cingulate cortex in ADHD? -
ANSWERS-It is involved in emotional regulation and impulse
control.
How does the orbitofrontal cortex relate to ADHD? -
ANSWERS-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? - ANSWERS-Dopamine transporter density
declines with age, affecting impulse control.
What is the significance of tau proteins in neurons? -
ANSWERS-They stabilize microtubules and are essential for
neuronal transport.
What imaging technique shows decreased energy and
glucose metabolism in Alzheimer's? - ANSWERS-PET scan.
What is the relationship between dopamine activity and
impulsivity in ADHD? - ANSWERS-Dopamine activity in the
nucleus accumbens influences attention and impulsivity.