Myasthenia Gravis Is a Collection of Muscle Disorders That Cause

question 72

Multiple Choice

Myasthenia gravis is a collection of muscle disorders that cause muscle fatigue and weakness. What is the major mechanism?

• A) overproduction of acetylcholinesterase
• B) autoimmune destruction of nicotinic acetylcholine receptors
• C) demyelination of axons in motor pathways
• D) autoimmune destruction of L-type Ca²⁺ channels.
• E) a tumor that overproduces acetylcholine

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