What causes rigor mortis?
Aug 12, 2020
2 minutes
Editor: Esben Schouboe
BIOLOGY Rigor mortis usually originates 3-4 hours after death, when the muscles’ energy stores are depleted. The muscles consume energy when they contract, although they consume the most energy when they relax, as the contractions themselves don’t require very much energy.
Muscles are made up of fibres with two thread-shaped proteins, actin
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