title: Observations on the functional internal anal sphincter of the vervet monkey.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D001003:Anal Canal / Q000187:drug effects / Q000294:innervation* / Q000502:physiology; D000818:Animals; D004558:Electric Stimulation; D000882:Haplorhini; D006584:Hexamethonium Compounds / Q000494:pharmacology; D066298:In Vitro Techniques; D009130:Muscle, Smooth / Q000187:drug effects; D013565:Sympatholytics / Q000494:pharmacology; D013566:Sympathomimetics / Q000494:pharmacology; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D006584:Hexamethonium Compounds; D013565:Sympatholytics; D013566:Sympathomimetics; D013779:Tetrodotoxin; D000109:Acetylcholine