Which of the following cause an increase in ACh release from the presynaptic neuron?
Correct Answer: Blocking K channels
Description: Ans. D. Blocking K channels* Potassium channel blocker will cause an increase in ACh release from the presynaptic neuron.* Blockade of presynaptic potassium channels promotes activation of voltage-gated calcium channels leading to the increased release of acetylcholine in the neuromuscular junction. Aminopyridines used in the treatment of Lambe-Eaton myasthenic syndrome acts by this mechanism and improves the muscle strength in the patients
Category:
Pharmacology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now