title: An ultrastructural analysis of the photoreceptors of the squid and their synaptic connections. II. Intraretinal synapses and plexus.
mesh_terms: D000818:Animals; D001369:Axons; D049832:Decapodiformes / Q000033:anatomy & histology*; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D009476:Neurons, Efferent / Q000166:cytology; D010786:Photoreceptor Cells / Q000166:cytology*; D017981:Receptors, Neurotransmitter; D012160:Retina / Q000166:cytology*; D013569:Synapses / Q000166:cytology*; D013570:Synaptic Membranes; D013572:Synaptic Vesicles
chemical_list: D017981:Receptors, Neurotransmitter