RESUMO
The sphenopalatine ganglion occupies a special place in neuropathology and dental neuropathy, accompanied by such pronounced symptoms as "vegetative storm". The aim of the research was obtaining information on the external structure of the sphenopalatine ganglion, the morphometric characteristics of its neurons in norm and in experimental diabetes. The study was carried out on male Wistar rats weighing 260-300 g: with a stereoscopic biological microscope, using ophthalmic instruments, we removed almost the entire gland that was not accompanied by significant bleeding under general anesthesia. Peculiarities of the external structure of the sphenopalatine ganglion of the white rat were studied by macro-micro preparations under a binocular microscope at 50 objects pervaded with silver nitrate, according to Christen-sen
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Assuntos
Animais , Masculino , Ratos , Doenças Metabólicas/induzido quimicamente , Diabetes Mellitus Experimental/induzido quimicamente , Fossa Pterigopalatina/anatomia & histologia , Osso Esfenoide/anatomia & histologia , Ratos Wistar , Doenças Metabólicas/fisiopatologia , Modelos Animais , Fossa Pterigopalatina/metabolismo , Nitrato de Prata/efeitos adversos , Gânglio Geniculado/anatomia & histologia , Gânglio Geniculado/efeitos dos fármacosRESUMO
The fine branches of the trigeminal ganglion were studied by macromicropreparation and total clearing in glycerol of specimens collected during autopsies of 78 people aged 23-69 years impregnated with silver nitrate by the Christensen method or stained with the Schiff reagent as described by Shubich and Khodos; serial histotopograms prepared in the sagittal plane from specimens from 15 autopsies of humans of the same age range and also impregnated by the Christensen method were also studied. Four histotopograms were used for reconstruction of the fine nerves. The results showed that numerous branches of diameter 50-150 microm ran directly from the trigeminal nerve, more from the outer and less from the deeper surface, innervating the walls of the trigeminal cavity. No connecting branches of the trigeminal ganglion to the internal carotid plexus, greater petrous nerve, or any other nerve were seen.
