title: Ultrastructure of the ampullary receptor organs in a mormyrid fish, Gnathonemus petersii. 3.
mesh_terms: D000818:Animals; D001485:Basement Membrane; D003594:Cytoplasmic Granules; D004560:Electricity; D004847:Epithelial Cells; D005089:Exocytosis; D005399:Fishes / Q000033:anatomy & histology*; D006025:Glycosaminoglycans; D006652:Histological Techniques; D008854:Microscopy, Electron; D008961:Models, Structural; D009940:Organoids; D011984:Sensory Receptor Cells / Q000166:cytology*; D012867:Skin / Q000166:cytology*
chemical_list: D006025:Glycosaminoglycans