Which Is the Characteristic Symptom of Myasthenia Gravis

question 39

Multiple Choice

Which is the characteristic symptom of myasthenia gravis?

• A)gradual paralysis
• B)sudden,temporary muscle spasms
• C)abnormal fatigue involving skeletal muscles
• D)widespread stiffness and internal pain over certain muscles

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Definitions:

Autonomic Reflex

An involuntary response mediated by the autonomic nervous system to maintain homeostasis, such as the reflex that controls heart rate.

Motor Neuron

Neuron that innervates skeletal, smooth, or cardiac muscle fibers.

Vagus Nerve

The tenth cranial nerve, which innervates the heart, lungs, and digestive tract, thereby playing a significant role in controlling heart rate, gastrointestinal motility, and respiratory rate.

Parasympathetic Impulses

Nerve signals transmitted through the parasympathetic branch of the autonomic nervous system, generally working to conserve energy and restore the body to a state of calm.