MN551 UNIT 9 PATHO QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
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? - 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?
- 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? - ANSWER *****The
components of the patient's limbic system
The man's parietal lobe
ANSWERS WITH SOLUTIONS 2024
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? - 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?
- 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? - ANSWER *****The
components of the patient's limbic system
The man's parietal lobe
