MN551 Unit 9 Patho Exam 2024 Rated A+

MN551 Unit 9 Patho Exam 2024 Rated A+ 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 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? - Answer ️️ - Enlargement of the lateral and third ventricles and reduction in frontal and temporal volumes Atrophy and decreased blood flow in the amygdala ******Reduced activity and gray matter volume in the prefrontal cortex Decreased brain activity in the pons and brain stem The parents of a 15-year-old boy are frustrated by his persistent inability to fall asleep at a reasonable hour at night, as well as the extreme difficulty that they have in rousing him in the morning. While sleepy after waking, the son claims not to