title: Ultrastructural and morphometric studies of nonsecretory neurons of the rat supraoptic nucleus.
abstract: Ultrastructural and morphometric studies were made on nonsecretory and complementarily neurosecretory neurons of the rat supraoptic nucleus. 6% of perimeter of nonsecretory neuronal perikarya was covered by presynaptic endings. The value was well in agreement with that of interneurons elsewhere. The covering ratio of neurosecretory neurons was 12%. The perikarya of nonsecretory and neurosecretory neurons bear an average of 14 and 49 axon terminals, respectively. Nonsecretory neurons should be interneurons, receiving much less information than neurosecretory neurons.
mesh_terms: D000818:Animals; D001369:Axons / Q000648:ultrastructure; D005260:Female; D008854:Microscopy, Electron; D009474:Neurons / Q000648:ultrastructure*; D051381:Rats / Q000033:anatomy & histology*; D011919:Rats, Inbred Strains; D013495:Supraoptic Nucleus / Q000166:cytology / Q000648:ultrastructure*; D013569:Synapses / Q000648:ultrastructure