Question 1 · Easy
The stiffening of skeletal muscles that begins a few hours after death is called:
- ALivor mortis
- BPutrefaction
- CAlgor mortis
- DRigor mortis
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Answer: D · Rigor mortis
Rigor mortis is stiffening of the muscles caused by loss of ATP after death. It usually starts in the small muscles of the face and jaw within 2-4 hours and spreads to the limbs. For this reason the body is positioned, the eyes closed and dentures put in soon after death during last-offices care. The stiffness later passes off as tissues break down.
- A: Livor mortis is the purplish discoloration in dependent parts as blood settles.
- B: Putrefaction is decomposition by bacteria, which comes later.
- C: Algor mortis is the gradual cooling of the body after death.