title: Osmotic stress induced histochemical changes in the ependyma and the preoptic neurons of the teleost fish Rita rita (Ham.) with a note on the periventricular vascularization.
mesh_terms: D000818:Animals; D002560:Cerebrovascular Circulation; D004805:Ependyma / Q000098:blood supply / Q000166:cytology*; D005399:Fishes / Q000033:anatomy & histology*; D009474:Neurons / Q000502:physiology*; D009490:Neurosecretory Systems / Q000166:cytology* / Q000502:physiology; D009994:Osmolar Concentration; D013194:Staining and Labeling; D013312:Stress, Physiological