Which statement best defines mechanism of death?

Which statement best defines mechanism of death?

• A. The actions that led to death in the victim's environment.
• B. The physiological derangement produced by the cause of death that results in death.
• C. The external event causing death.
• D. The time of death.

Answer: (B)

Mechanism of death is the physiological change produced by the cause of death that directly leads to death. It explains what happens inside the body after the initial insult and how that failure stops life-sustaining processes. For example, a gunshot wound may be the cause of death, but the mechanism could be exsanguination causing shock and circulatory collapse, or hypoxia from blood loss. The cause is the underlying event or condition, while the mechanism is the specific pathophysiological process that ends life. Time of death or the external event that started the sequence aren’t the mechanisms themselves.

Mechanism of death is the physiological change produced by the cause of death that directly leads to death. It explains what happens inside the body after the initial insult and how that failure stops life-sustaining processes. For example, a gunshot wound may be the cause of death, but the mechanism could be exsanguination causing shock and circulatory collapse, or hypoxia from blood loss. The cause is the underlying event or condition, while the mechanism is the specific pathophysiological process that ends life. Time of death or the external event that started the sequence aren’t the mechanisms themselves.