An Individual with the Condition of Myasthenia Gravis Is Faced

question 10

Multiple Choice

An individual with the condition of myasthenia gravis is faced with an autoimmune disorder in which the body defenses attack acetylcholine receptors on muscle cells. What would be the expected effect on calcium levels near contractile proteins, following the arrival of an electrical impulse at those neuromuscular junctions?

• A) a rapid decrease in concentration due to uptake by sarcoplasmic reticulum
• B) a rapid increase in concentration due to release by sarcoplasmic reticulum
• C) small or no increases in concentration due to weak responses by acetylcholine receptors
• D) a large decrease in concentration that occurs slowly
• E) a large increase in concentration that occurs slowly

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Definitions:

Approach Reaction

Involves moving towards something perceived as desirable or beneficial, often discussed in the context of psychological responses to stimuli or situations.

Need For Power

A psychological term that describes an individual's desire to control or influence others.

Fundamental Attribution Error

The tendency to overemphasize personality-based explanations for behaviors observed in others while underestimating the influence of situational factors.

Terrorist Attacks

Violent acts intended to create fear, perpetrated for a religious, political, or ideological goal, and deliberately targeting or disregarding the safety of non-combatants.