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How does multiple sclerosis affect the transmission of action potentials?

How does multiple sclerosis affect the transmission of action potentials?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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4- Multiple sclerosis (MS) is a neurological disease that typically occurs in young adults. It is caused by the destruction of the myelin sheath around motor and sensory axons in the brain and spinal cord. The result is a progressive loss of motor and sensory function. Typical symptoms include muscle paralysis, impaired vision, loss of balance, slurred speech, and skin numbness. Multiple sclerosis is an autoimmune disease, which means that the affected individual's own immune system mistakenly attacks and destroys the myelin sheath. Recent investigations suggest that the immune system confuses the myelin sheath proteins for viral proteins with similar amino acid sequences and attacks them. Treatment with interferons-antiviral proteins produced by cells in the immune system-can ease the symptoms of MS, but at present there is no cure. Нealthy Nerve affected by MS Damaged myelin Node of Ranvier Exposed fiber Schwann cells Nerve fiber Answer the following question How does multiple sclerosis affect the transmission of action potentials?
Transcribed Image Text:4- Multiple sclerosis (MS) is a neurological disease that typically occurs in young adults. It is caused by the destruction of the myelin sheath around motor and sensory axons in the brain and spinal cord. The result is a progressive loss of motor and sensory function. Typical symptoms include muscle paralysis, impaired vision, loss of balance, slurred speech, and skin numbness. Multiple sclerosis is an autoimmune disease, which means that the affected individual's own immune system mistakenly attacks and destroys the myelin sheath. Recent investigations suggest that the immune system confuses the myelin sheath proteins for viral proteins with similar amino acid sequences and attacks them. Treatment with interferons-antiviral proteins produced by cells in the immune system-can ease the symptoms of MS, but at present there is no cure. Нealthy Nerve affected by MS Damaged myelin Node of Ranvier Exposed fiber Schwann cells Nerve fiber Answer the following question How does multiple sclerosis affect the transmission of action potentials?
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