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MN551 Unit 9 Patho
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Exam of 3 pages for the course MN551 Unit 9 Patho at MN551 Unit 9 Patho (MN551 Unit 9 Patho)
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MN551 Unit 9 PathoA 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
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