The Muscle Weakness of Myasthenia Gravis Results from

question 45

Multiple Choice

The muscle weakness of myasthenia gravis results from

• A) insufficient acetylcholine release from presynaptic vesicles.
• B) loss of acetylcholine receptors in the end-plate membrane.
• C) the motor neuron action potential being too small to shock the muscle fibers.
• D) excessive acetylcholinesterase that destroys the neurotransmitter.
• E) All of the above probably contribute to the weakness.

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Definitions:

Concepts

Mental representations or categories of objects, events, or activities that share common characteristics.

Events

Events are occurrences or happenings that are significant to the observer, ranging from personal milestones to major historical incidents.

Place

A specific, defined area or environment that holds meaning or significance for an individual or community.

Unconscious Reconstruction

The process by which memories or perceptions are unintentionally altered by an individual's expectations or beliefs.