Death Biological

Death is a natural process of transition from life to non-existence. But does everyone know how this event goes?

Biological death is the last stage of the life cycle of an organism. It is characterized by a complete stop of all physiological functions that support life in the body. At this moment, all organs and systems cease to function, which leads to death.

How does biological death occur? Biochemists distinguish four stages of biological death: - The first stage is a change in the chemical composition of biological fluids. During this stage, ammonia and other toxins accumulate in the blood. This contributes to the accumulation of muscle tension and poor circulation. At this stage, changes in tissues can already be detected, but they are still reversible. - The second stage is the transition to irreversibility. At this phase, irreversible biochemical processes begin, leading to the destruction of cell membranes and molecules. This stage lasts several hours or days. - The third stage is autolysis. This is the process of self-destruction of organs and tissues. It lies in the fact that cells begin to secrete enzymes that have a destructive effect on surrounding proteins and liquids. This process continues until the complete death of the organ occurs. - The fourth stage is the degradation of the corpse. At this stage of autolysis, microorganisms that are in the body of the deceased begin to absorb nutrients from the environment. Putrefactive processes occur, resulting in gases and a cadaverous odor. As a result of the decomposition of the body, viable microorganisms remain only in the stomach and intestines. These bacteria decompose, creating the conditions for bacterial contamination.