> [!infobox] <s class="aside-in"><em>mentioned in 1 topic, 1 source</em></s> #### <s class="topic-title">[[Acetycholine]]</s> A [[Neurotransmitter]] that plays a major role in the [[parasympathetic nervous system]] for muscle contraction. ^[[[notes - Herbs for mental health]]] **See**:: #### Related No results to show for list query.