Nervous System case study

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Nervous System case study

ANSWER ACCURATELY NO PLAGIARISM AND INCLUDE AS MUCH INFORMATION IN EACH QUESTION AS YOU CAN, DON’T COPY FROM GOOGLE OR OTHER SAME CASE STUDIES. Presentation: Mr. Shanahan is a 60 year old man who has spent his life working on fishing vessels. It is physically demanding work and recently he has been feeling quite a bit of fatigue and breathlessness along with muscle cramps. A firm believer in “sleeping it off”, Mr. Shanahan chalks his symptoms up to his labor intensive job and advancing years, and decides it’s really not an issue. As time goes on however, his fatigue and stiffness remain and in addition he begins to notice that his saliva seems thicker and he is having trouble eating and drinking—swallowing has become difficult. What finally drives Mr. Shanahan to the doctor’s office is an increase in speech problems. Clinical Findings: Upon listening to his symptoms, Mr. Shanahan’s GP refers him to a neurologist. His blood test comes back with high levels of creatine kinase. He also has an EMG and nerve conduction tests performed. The motor neuron action potentials (MUPs) from the EMG are abnormally small and brief. The nerve conduction test shows a weak signal and decreased amplitude. QUESTIONS/PROMPTS FOR ANALYSIS 1. What is a motor neuron disorder? (20 pts) 2. What are the four types of motor neuron disorders? (60 pts) 3. Based on the Mr. Shanahan’s symptoms, which motor neuron disorder does he have? (20 pt) 4. These motor neuron disorders are characterized by the degeneration of which motor neurons? (40 pts) 5. What is the purpose of motor neurons? (10 pt) 6. What is the function of the brain stem and what parts of the brain is it comprised of? (40 pts) 7. How does an electromyography (EMG) used to diagnose disorders of lower motor neurons, muscular disorders, and peripheral nerves? (60 pts) 8. What are upper and lower motor neurons? (40 pts) 9. List the sources that you used to evaluate this case. (10pt)


 

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