Histopathological study on the changes of pulmonary arteries of guinea-pigs in strangulation.
The pulmonary artery in asphyxia was observed with both light and scanning electron microscopes. The media of this vessel showed the repetition of the partially thickening of the circular muscle layers. Our observations indicate that the bead-like contraction of the pulmonary artery in asphyxia is mainly induced by contraction of the localized sphincter muscle layers.
Kita
T
T
Department of Forensic Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Ohshima
T
T
Tanaka
N
N
D000818:Animals; D001237:Asphyxia / Q000473:pathology*; D003251:Constriction, Pathologic / Q000473:pathology; D006168:Guinea Pigs; D008297:Male; D008855:Microscopy, Electron, Scanning; D009131:Muscle, Smooth, Vascular / Q000473:pathology; D011651:Pulmonary Artery / Q000473:pathology*