The first hours ..
when the heart stops the pulse The body starts to cool gradually and turns pink or purple. The body temperature drops 0.83 degrees per hour until it reaches room temperature. This condition is known as rigor mortis or cold death. Tissue of the dead or muscle is caused from 2 to 6 hours after death (dead stiffness is important in knowing death time or approximate time).
The intestines and stomach ...
while the body as a whole is dead; but the skin cells stay alive for up to several hours after death. Small organisms inside the intestine rot, and the body begins to decompose as a result of ingesting enzymes to the body. Brain cells begin to die after 3 minutes of death. Bacteria are prepared to eat shredded cells as a result of high levels of acidity due to accumulation of carbon dioxide.
The body turns green due to the passage of bacteria from the intestinal wall to the skin and then turns to violet due to the heart's stop pumping blood. Gravity draws red blood cells down the body. The blood freezes and causes violet bruises, then turns black.
Skin...
Although the skin is composed of cells but survives for several days because of its presence on the surface, it lives longer than other cells.
Bacteria and bad smell Bacteria
start producing gas that smells very pungent and bad. These gases cause swelling of the body, eye bulging, and swollen tongue. In rare cases when the body of a pregnant woman decomposes, this gas creates a great pressure that expels the fetus outside the mother's abdomen. This condition is known as "coffin birth".
Decomposition...
After a week, a skin ulcer occurs so that if you touch it, it will all fall. After a month of death, hair, nails, teeth fall, and the body gradually explodes and explodes. The body decomposes twice as fast in water from the land and is 8 times faster than the buried body.