MN551 Unit 9 Patho Exam
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?
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?
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?
*****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?
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?
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?
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?
*****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?
Enlargement of the lateral and third ventricles and reduction in frontal and temporal volumes
Atrophy and decreased blood flow in the amygdala
