Neuromuscular disorders · Physiology

The hallmark feature of myasthenia gravis is:

  1. Muscle rigidity
  2. Muscle fatigue that improves with activity
  3. Muscle weakness that worsens with activity
  4. Muscle spasm at rest
Show answer and explanation

Correct answer: Muscle weakness that worsens with activity

In myasthenia gravis, repeated use of muscles leads to increasing weakness. This occurs due to depletion of functional acetylcholine receptors.

Difficulty: Medium Question 2 of 20

Practice all 20 Neuromuscular disorders questions

Keep practicing

More Neuromuscular disorders questions