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Putrefaction is the fifth stage of death, following pallor mortis, livor mortis, algor mortis, and rigor mortis.This process references the breaking down of a body of an animal post-mortem.
Putrefying bacteria produce a plethora of enzymes which aid in disintegration of the body. Because of the lack of immune function within the body, these bacteria spread through blood vessels and utilize the carbohydrates and proteins in the blood as an energy source. [3] The main bacterial species carrying out putrefaction is Cl. welchii. [8]
A fresh pig carcass. At this stage the remains are usually intact and free of insects. The corpse progresses through algor mortis (a reduction in body temperature until ambient temperature is reached), rigor mortis (the temporary stiffening of the limbs due to chemical changes in the muscles), and livor mortis (pooling of the blood on the side of the body that is closest to the ground).
The human body is composed of approximately: 64% water, 20% protein, 10% fat, 1% carbohydrate, 5% minerals. [1] The decomposition of soft tissue is characterized by the breakdown of these macromolecules, and thus a large proportion of the decomposition products should reflect the amount of protein and fat content initially present in the body. [4]
Manifest functions are the consequences that people see, observe or even expect. It is explicitly stated and understood by the participants in the relevant action. The manifest function of a rain dance, according to Merton in his 1957 Social Theory and Social Structure, is to produce rain, and this outcome is intended and desired by people participating in the ritual.
Autolysis and putrefaction are the main processes responsible for the decomposition of remains. [ 1 ] In the healing of wounds, autolytic debridement can be a helpful process, where the body breaks down and liquifies dead tissue so that it can be washed or carried away.
This usually happens around the second week of decomposition. Gas accumulation and bloating will continue until the body is decomposed sufficiently for the gas to escape. The third stage is putrefaction. It is the final and longest stage. Putrefaction is where the larger structures of the body break down, and tissues liquefy.
The first signs of putrefaction are usually the discolorations of the body which can vary between shades of green, blue, red or black depending on 1) where the color changes are observed and 2) how far along within the decomposition process the observation is made. This phenomenon is known as marbling.