title: Ultrastructural analysis of functional changes in the synaptic endings of turtle cone cells.
mesh_terms: D000818:Animals; D003623:Dark Adaptation; D008027:Light; D010786:Photoreceptor Cells / Q000648:ultrastructure*; D013569:Synapses / Q000648:ultrastructure*; D013572:Synaptic Vesicles; D013696:Temperature; D014426:Turtles