Section II - 14
Neuromuscular Anatomy and Physiology

Presynaptically block receptor release; postsynaptically block ACh nicotinic receptors on the muscle end plate Presynaptically block ACh release; postsynaptically block ACh muscarinic receptors on the muscle end plate Presynaptically block ACh release; postsynaptically block ACh nicotinic receptors on the muscle end plate All of the above None of the above