title: Synaptic contacts between red-sensitive cones and triphasic chromaticity horizontal cells in the turtle retina.
abstract: Using combined physiological and anatomical methods, we have shown that triphasic chromaticity horizontal cells (THC) in the turtle retina make ribbon synaptic contacts with about 20 cones, two-thirds were red-sensitive, while the rest were blue-sensitive. The response of THC to red flashes appeared to be generated via synapses from red-sensitive cones; this interpretation differs from those of the previous studies where only blue-sensitive cones were thought to make synaptic contacts with the THC.
mesh_terms: D000818:Animals; D009474:Neurons / Q000648:ultrastructure; D010786:Photoreceptor Cells / Q000648:ultrastructure; D012160:Retina / Q000648:ultrastructure*; D013569:Synapses / Q000648:ultrastructure; D014426:Turtles / Q000033:anatomy & histology*