title: Structure and ultrastructure of the magnocellular preoptic nucleus or Triturus marmoratus.
mesh_terms: D000818:Animals; D003594:Cytoplasmic Granules / Q000032:analysis; D008297:Male; D009474:Neurons / Q000648:ultrastructure*; D009490:Neurosecretory Systems / Q000648:ultrastructure*; D011301:Preoptic Area / Q000166:cytology* / Q000648:ultrastructure; D014319:Triturus / Q000033:anatomy & histology*