Neuromuscular disorders · Physiology

Lambert-Eaton myasthenic syndrome is caused by antibodies against:

  1. Postsynaptic acetylcholine receptors
  2. Presynaptic calcium channels
  3. Acetylcholinesterase
  4. Sodium channels
Show answer and explanation

Correct answer: Presynaptic calcium channels

Lambert-Eaton syndrome involves antibodies against presynaptic voltage-gated calcium channels. This reduces acetylcholine release.

Difficulty: Medium Question 4 of 20

Practice all 20 Neuromuscular disorders questions

Keep practicing

More Neuromuscular disorders questions