In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: The basal nucleus of Meynert contains large amounts of this substance, and antibodies destroy this substance's receptors in myasthenia gravis. Galantamine inhibits its breakdown. It has ionotropic and G protein-coupled receptors called (*) nicotinic and muscarinic, respectively. This molecule is released in pre- and post-ganglionic parasympathetic neurons, as well as at the motor end plates of skeletal muscle. A deficiency of it was proposed as a cause of Alzheimer's disease, which is treated using inhibitors of its namesake esterase. For 10 points, name this neurotransmitter that mediates neuromuscular interactions.
A:
Science