Early changes in the corpse

  • Cadaveric spots
  • Muscle stiffness
  • Drying
  • The autolysis
  • Early changes in the body are reliable signs of the coming death. In forensic against the knowledge of regularities of development of changes in the corpse allows to solve a number of expert tasks: prescription of death, the original and the changed position of the corpse. Sometimes features cadaveric changes have diagnostic value, for example, certain types of poisoning, when the bleeding body, and so on, Development and expression of early changes in the body depends on many external and internal factors. To these changes with expert value include: cooling, education cadaveric spots and muscle rigor and the initial period of cadaveric drying, autolysis.
    Cooling. With the onset of biological death cease metabolic processes and there is a body heat to the external environment, which leads to a gradual cooling of the corpse. The temperature drop occurs as long as the temperature of the corpse will not be 0.5-1 degrees below the environment. Lower the temperature of the corpse compared to ambient temperature depends on evaporation from the skin of a corpse. At low temperatures (below 0 C) cooling the body goes into a frozen corpse. On the speed of the cooling influence body weight and the severity of the subcutaneous fat layer. With the depletion cooling occurs more rapidly, on the contrary, in obese people, this process is slower. Equally important is the position of the corpse and the nature of service on it than it is warmer, the slower developing cooling. The bodies of newborns are cooled especially fast, it depends on the larger the surface of the skin in relation to body weight, it is very gentle and thin epidermis in newborns fosters intensive cooling of the corpse.
    On the speed of the falling body temperature of a corpse has an effect and a cause of death. So, if the death occurred from tetanus in the period cramps, from sepsis, typhus, typhoid, mechanical asphyxia and some of poisoning, the body temperature after death for a short time may increase. According to some reports, the body temperature within the next two hours after death can reach +40 C and higher.
    Although the rate of decrease of the temperature of the corpse affected by many conditions, but approximately at normal room temperature (+16- +18 C) temperature lowering of the body of a corpse has some regularity. On the death cooling primarily celebrated in the open parts of the body: in 1 hour noticeably felt cold hands, after 2-3 h - facial skin. Many researchers indicate that the temperature of the corpse falls on average by 1 degree C in 1 hour According to other data, the fall of body temperature slightly slowed down after six hours: 1 degree Since it falls every 1,5-2 hours For a more precise definition of patterns of temperature drop of the corpse, which would take into account the ambient temperature, it is necessary to measure the temperature of a corpse after a certain time at the beginning and at the end of the autopsy, at the place of discovery, and then upon receipt of a corpse in the morgue while taking into account the ambient temperature. A better measurement of temperature every 2 hours in order to establish a set of benchmarks that indicate the speed at which it falls under these particular circumstances. The temperature of the corpse should be measured in the rectum. For a more precise definition of limitation of death rate of temperature drop proposed deep electric thermometer liver with electrotermometria ETM-ZB.