Modern Medicine

How is apoptosis different from necrosis?
Answered by Discovery Channel
  • Discovery Channel

    Discovery Channel

  1. Apoptosis and necrosis refer to the two ways that a cell can die. Apoptosis is the process by which a cell commits suicide, while necrosis is more akin to the murder of a cell or what happens when a cell is in a deadly car accident. That's because necrosis occurs when the cell is damaged by an injury to the body, such as a heart attack, stroke, infection or an actual injury. On the other hand, cells undergoing apoptosis receive the signal to die from within themselves or by nearby cells. The aftermath of the two processes is different, for cells undergoing apoptosis clean up after themselves, whereas cells that die by necrosis leave behind inflammation that can do further damage to the body.

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