title: Fine structure of photoreceptors and associated neurons in the retina of Lampetra fluviatilis (Cyclostomi).
mesh_terms: D000818:Animals; D002462:Cell Membrane; D003623:Dark Adaptation; D005399:Fishes / Q000033:anatomy & histology*; D006003:Glycogen / Q000032:analysis; D007798:Lampreys / Q000033:anatomy & histology*; D008027:Light; D009474:Neurons / Q000648:ultrastructure; D010786:Photoreceptor Cells / Q000648:ultrastructure*; D012160:Retina / Q000032:analysis / Q000166:cytology; D013569:Synapses
chemical_list: D006003:Glycogen