The aim of this study was to observe the morphological changes of muscle in the process of rigor mortis. The quadriceps of 40 rats at various postmortem intervals were observed under the...The aim of this study was to observe the morphological changes of muscle in the process of rigor mortis. The quadriceps of 40 rats at various postmortem intervals were observed under the scanning electron microscope(SEM) and the light microscope by phosphotungstic acid haematoxylin(PTAH) stain. The results showed that the striations of muscle were blurred within 4 h, but they became apparent from 6 h to 24 h after death. The authors suggest that this phenomenon be associated with the increased resistance of muscle against the postmortal changes. The observations by scanning electron microscopy and light microscopy have revealed that the muscles do contract in the process of rigor mortis because the distance between two Z lines shortens and the I band narrows, compared with those in anaesthetised animals. The basic biochemical process for the formation of rigor mortis is the same as that of muscle contraction except that the former happens postmortem and the latter antemortem.展开更多
The purpose of this investigation was to offer evidence that immumohistochemical staining is applicable to the determination of morphin distribution in human tissues from cases of opiate associated death. We studied 4...The purpose of this investigation was to offer evidence that immumohistochemical staining is applicable to the determination of morphin distribution in human tissues from cases of opiate associated death. We studied 4 cases of opiate associated death and 2 cases of sudden cardiac death without a history of drug abuse as control. The samples were taken from cerebral cortex展开更多
文摘The aim of this study was to observe the morphological changes of muscle in the process of rigor mortis. The quadriceps of 40 rats at various postmortem intervals were observed under the scanning electron microscope(SEM) and the light microscope by phosphotungstic acid haematoxylin(PTAH) stain. The results showed that the striations of muscle were blurred within 4 h, but they became apparent from 6 h to 24 h after death. The authors suggest that this phenomenon be associated with the increased resistance of muscle against the postmortal changes. The observations by scanning electron microscopy and light microscopy have revealed that the muscles do contract in the process of rigor mortis because the distance between two Z lines shortens and the I band narrows, compared with those in anaesthetised animals. The basic biochemical process for the formation of rigor mortis is the same as that of muscle contraction except that the former happens postmortem and the latter antemortem.
文摘The purpose of this investigation was to offer evidence that immumohistochemical staining is applicable to the determination of morphin distribution in human tissues from cases of opiate associated death. We studied 4 cases of opiate associated death and 2 cases of sudden cardiac death without a history of drug abuse as control. The samples were taken from cerebral cortex
