NURS 5357 NEUROBIOLOGY 2026 EXAM QUESTIONS
AND SOLUTIONS RATED A+
✔✔What brain regions are involved in impulsivity issues for children? - ✔✔Orbitofrontal
and ventral striatum.
✔✔How do stimulants improve cognition in ADHD? - ✔✔By increasing neural
connectivity.
✔✔What role does dopamine play in the brain? - ✔✔It is crucial in the reward and
motivation pathways.
✔✔What does medial temporal lobe atrophy indicate in an MRI? - ✔✔It is associated
with Lewy Body dementia.
✔✔What behavior is bothersome to families of dementia patients? - ✔✔Apathy, which
includes loss of interest and difficulty planning.
✔✔What brain structure is related to the feeling of pleasure? - ✔✔Ventral pallidum.
✔✔What is habituation in the context of pleasure? - ✔✔The decrease in pleasure
feelings from the same stimulus over time.
✔✔What are the two most common abnormal brain findings in ADHD? - ✔✔Dysfunction
in the prefrontal cortex and the striatum.
✔✔What symptoms are associated with low dopamine and norepinephrine in ADHD? -
✔✔Inability to sit still, inability to focus, fidgeting, and shifting attention.
✔✔What is the focus in staging Alzheimer's disease? - ✔✔An increasing number of
neurofibrillary tangles on imaging.
✔✔ What do stimulant medications improve in ADHD? - ✔✔Impulse control by
increasing dopamine in the nucleus accumbens.
✔✔Which brain structure is associated with hyperactive symptoms in ADHD? -
✔✔Prefrontal motor cortex.
✔✔What do neurofibrillary tangles consist of? - ✔✔Hyperphosphorylated tau proteins.
✔✔What happens to tau proteins in Alzheimer's disease? - ✔✔They become
abnormally phosphorylated, detach from microtubules, and aggregate into twisted fibers
inside neurons.
AND SOLUTIONS RATED A+
✔✔What brain regions are involved in impulsivity issues for children? - ✔✔Orbitofrontal
and ventral striatum.
✔✔How do stimulants improve cognition in ADHD? - ✔✔By increasing neural
connectivity.
✔✔What role does dopamine play in the brain? - ✔✔It is crucial in the reward and
motivation pathways.
✔✔What does medial temporal lobe atrophy indicate in an MRI? - ✔✔It is associated
with Lewy Body dementia.
✔✔What behavior is bothersome to families of dementia patients? - ✔✔Apathy, which
includes loss of interest and difficulty planning.
✔✔What brain structure is related to the feeling of pleasure? - ✔✔Ventral pallidum.
✔✔What is habituation in the context of pleasure? - ✔✔The decrease in pleasure
feelings from the same stimulus over time.
✔✔What are the two most common abnormal brain findings in ADHD? - ✔✔Dysfunction
in the prefrontal cortex and the striatum.
✔✔What symptoms are associated with low dopamine and norepinephrine in ADHD? -
✔✔Inability to sit still, inability to focus, fidgeting, and shifting attention.
✔✔What is the focus in staging Alzheimer's disease? - ✔✔An increasing number of
neurofibrillary tangles on imaging.
✔✔ What do stimulant medications improve in ADHD? - ✔✔Impulse control by
increasing dopamine in the nucleus accumbens.
✔✔Which brain structure is associated with hyperactive symptoms in ADHD? -
✔✔Prefrontal motor cortex.
✔✔What do neurofibrillary tangles consist of? - ✔✔Hyperphosphorylated tau proteins.
✔✔What happens to tau proteins in Alzheimer's disease? - ✔✔They become
abnormally phosphorylated, detach from microtubules, and aggregate into twisted fibers
inside neurons.
