MN551 UNIT 9 PATHO EXAM SOLVED #9
A 22-year-old female college student is shocked to receive a diagnosis of myasthenia
gravis. What are the etiology and most likely treatment for her health problem? - correct
answer Excess acetylcholinesterase production; treatment with thymectomy
Cerebellar lesions; surgical and immunosuppressive treatment
******A shortage of acetylcholine receptors; treatment with corticosteroids and
intravenous immunoglobulins
Autoimmune destruction of skeletal muscle cells; treatment with intensive physical
therapy and anabolic steroids
Which of the following statements most accurately characterizes an aspect of the
neurobiology of sleep? - correct answer Input from the retinas is interpreted by the
cerebellum and contributes to maintenance of the circadian rhythm.
********The reticular formation, thalamus, and cerebral cortex interact to integrate the
sleep-wake cycle.
The pituitary releases melatonin at predictable points in the circadian rhythm in order to
facilitate sleep.
The hypothalamus stimulates the anterior and posterior pituitary to modulate sleeping-
waking cycles.
After surviving an ischemic stroke, a 79-year-old male has demonstrated significant
changes in his emotional behavior, with his family noting that he now experiences wide
mood swings and exaggerated responses of empathy, anger, and sadness to situations.
His care team would most likely attribute these responses to ischemic changes in which
of the following brain structures? - correct answer *****The components of the patient's
limbic system
The man's parietal lobe
The patient's temporal lobe in general and Wernicke area in particular
The man's occipital lobe
A 44-year-old female has been diagnosed with major depression. Which of the following
neuroimaging findings is most congruent with the woman's diagnosis? - correct answer
Enlargement of the lateral and third ventricles and reduction in frontal and temporal
volumes
Atrophy and decreased blood flow in the amygdala
A 22-year-old female college student is shocked to receive a diagnosis of myasthenia
gravis. What are the etiology and most likely treatment for her health problem? - correct
answer Excess acetylcholinesterase production; treatment with thymectomy
Cerebellar lesions; surgical and immunosuppressive treatment
******A shortage of acetylcholine receptors; treatment with corticosteroids and
intravenous immunoglobulins
Autoimmune destruction of skeletal muscle cells; treatment with intensive physical
therapy and anabolic steroids
Which of the following statements most accurately characterizes an aspect of the
neurobiology of sleep? - correct answer Input from the retinas is interpreted by the
cerebellum and contributes to maintenance of the circadian rhythm.
********The reticular formation, thalamus, and cerebral cortex interact to integrate the
sleep-wake cycle.
The pituitary releases melatonin at predictable points in the circadian rhythm in order to
facilitate sleep.
The hypothalamus stimulates the anterior and posterior pituitary to modulate sleeping-
waking cycles.
After surviving an ischemic stroke, a 79-year-old male has demonstrated significant
changes in his emotional behavior, with his family noting that he now experiences wide
mood swings and exaggerated responses of empathy, anger, and sadness to situations.
His care team would most likely attribute these responses to ischemic changes in which
of the following brain structures? - correct answer *****The components of the patient's
limbic system
The man's parietal lobe
The patient's temporal lobe in general and Wernicke area in particular
The man's occipital lobe
A 44-year-old female has been diagnosed with major depression. Which of the following
neuroimaging findings is most congruent with the woman's diagnosis? - correct answer
Enlargement of the lateral and third ventricles and reduction in frontal and temporal
volumes
Atrophy and decreased blood flow in the amygdala
