Electron microscopic picture of pterygopalatine ganglion in the rat after hypothermia.
Ultrastructure of the neurons of the pterygopalatine ganglion in two groups of rats with body temperature reduced to 22 degrees C and 18 degrees C of rectal temperature for periods of 3 hours, was examined. In both experimental groups various degree of cytoplasmic dispersion and widening of endoplasmic reticulum and cisterns of Golgi complex were observed. Nuclear envelope was often folded. In some mitochondria reduction of their crests and density of matrix and swelling were visible. Enlargement of the endoplasmic reticulum in the glial cells were also observed. The degree of ultrastructural changes in the group of animals cooled to the rectal temperature of 18 degrees C were more pronounced than in the group cooled to 22 degrees C.
Kuder
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Department of Comparative Anatomy, Pedagogical College, Kielce.
D000818:Animals; D005725:Ganglia, Autonomic / Q000648:ultrastructure*; D007035:Hypothermia / Q000473:pathology*; D008437:Maxilla; D008854:Microscopy, Electron; D010159:Palate; D051381:Rats; D017208:Rats, Wistar