title: Ultrastructural studies relevant to the possible functions of small granule-containing cells in the rat superior cervical ganglion.
mesh_terms: D000818:Animals; D005728:Ganglia, Sympathetic / Q000166:cytology* / Q000502:physiology; D010233:Paraganglia, Chromaffin / Q000166:cytology; D051381:Rats; D013045:Species Specificity; D013569:Synapses / Q000648:ultrastructure