title: [Structure and function of muscle fibers in lower vertebrates].
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000200:Action Potentials; D000818:Animals; D005399:Fishes / Q000033:anatomy & histology / Q000502:physiology
chemical_list: D000109:Acetylcholine
vernacular_title: Struktura i funktsiia myshechnykh volokon u nizshikh pozvonochnykh.