Autopsy and Gross Pathology · USMLE Step 1

What does “livor mortis” refer to in autopsy and postmortem examination?

  1. Postmortem stiffening of the muscles
  2. Gravitational pooling of blood
  3. Cooling of the body after death
  4. Bacterial decomposition of tissues
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Correct answer: Gravitational pooling of blood

Livor mortis (postmortem lividity) is the gravitational settling of blood in the dependent parts of the body after circulation stops, producing a characteristic skin discoloration.

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