Death is an unavoidable problem for anyone. Understanding death helps us understand life better. The most intuitive explanation for death is that various life activities of the human body have ceased. At this time, the human body will also undergo various changes due to the cessation of life activities. Then, within 24 hours, what changes will happen to human remains?
Judgment of death
For the judgment of "birth", some think that life is formed at the moment when the sperm and egg meet; some think that life is only after the heart can beat on its own. It begins to take shape; others think that the moment the child leaves the mother is considered real life.
Like "life", people have different ways of judging "death". In the past, when medical conditions were underdeveloped, people thought that breathed spontaneously and died after spontaneous heartbeat stopped; but now, people The category of " brain death" has also been introduced, which means that although there is still a heartbeat, people who do not breathe spontaneously and whose brain function has been permanently lost will be sentenced to "brain death".
Nowadays, people are judged to be dead, and more of them are brain death. The reason is that when the patient's heart and breathing have stopped, doctors may use artificial respiration, cardiopulmonary resuscitation, etc. to make it safe. . However, patients with brain death are irreversible. Once the patient is pronounced as brain dead, it means that it is irreversible.
Death 1-6 hours
First of all, we have to say that after death, human beings are subject to changes in external conditions and their own factors, which make their performance in different time periods inconsistent, such as: when the temperature is high, The microorganisms are more active, and the remains are decomposed faster at this time; while colder weather makes the decomposition of the remains slow; the baby’s body has a higher water content,Therefore, they change very quickly, the water content of the elderly body is lower, and their changes are slower.
If a patient is declared brain dead, their heartbeat will gradually stop without medical intervention. Within minutes of death, the pupils of the remains will dilate and lose their luster, and at the same time, the blood pressure in the body will gradually drop , and the drop in blood pressure means that the blood circulation stops. After the blood no longer participates in the circulation, it will gradually deposit under the blood vessels under the action of gravity, and penetrate below the body through the blood vessels. At this time, the red blood cells will be deposited in the lowest part of the body and pool together to form purple or red. Dark red spots, and this is the "corpse spot". Under normal circumstances, plaques will form around 1 hour after death, but some do not form until half an hour or 6-8 hours after death (the picture below is a bruise).
After the human body dies, the sphincter muscles will relax. If there is still excrement in their anus, they may leak out at this time.
After the human body dies, the human body no longer consumes energy to maintain body temperature. At this time, the human body will gradually become cold. The speed of the human body's cooling depends on the environmental speed and the fatness of the remains. In general, the higher the temperature of The slower the temperature loss; the fatter the body, the slower the temperature loss.
After 1-4 hours of death, the remains will become very stiff, so people in some places will quickly put on the old people when they have just passed away, otherwise it will be difficult to put on clothes because of their stiffness.
died 6-24 hours
died about 6 hours,Some remains will completely cool down, and a small number of men will achieve their last erection.
After the death of the human body, the microbes in the intestinal tract are still alive, but they are originally under the control of the immune system and will not damage normal human cells on a large scale. When the human body dies, the microbes in the intestine will use the remains as food, and gradually decompose the remains from the inside of the body.
The speed at which microorganisms decompose the remains depends on the ambient temperature. If the ambient temperature is high, their decomposition speed will increase a lot, and there will be obvious corruption in 2-3 days. In rare cases, abdominal cavity enlargement may also occur, similar to "whale burst", because a part of gas will be formed when microorganisms decompose the remains. If these gases cannot be discharged from the body, it will cause a pressure difference between the body and the outside, resulting in The abdomen of the human body swells like a balloon, and it is also called the "View of Giants".
After 12-24 hours of death, the color of the plaque will deepen and the area will also expand. If the position of the remains is changed, the original plaque will not disappear, and the bottom part after transportation It is no longer easy to form corpse spots. The forensic doctor will determine whether the remains have been altered based on the location of the plaque.
After 12-15 hours of death, the stiffness of the whole body joints will reach the peak position, but after 24 hours, it will begin to relieve, and after 3-7 days, it will be completely relieved.
24 hours after death, signs of corruption may appear on the surface of the human body, but this is not absolute, and it is mainly affected by external temperature. If the conditions are right, the human remains will show signs of a variety of insects, and even attract scavengers . Of course, we will try our best to avoid this now.
Summary
A series of manifestations after the death of the human body,It not only helps us understand the changes in the remains after death, but also helps people restore what happened before the death. Forensic doctors use these clues to restore the truth of the matter and complain for the dead.
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