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What is the reason for rigor mortis?

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Dr. Gurmukh Singh
Pathology

In brief: ATP depletion and

Calcium leakage.
The skeletal muscles continue using sugar to make atp even after death, till the tissue runs out of sugar and atp. One of the consequences of atp depletion is the formation of abnormal links between two components of muscle tissue, actin and myosin which causes muscle stiffening. Calcium leakage into muscle adds to that stiffening.

In brief: ATP depletion and

Calcium leakage.
The skeletal muscles continue using sugar to make atp even after death, till the tissue runs out of sugar and atp. One of the consequences of atp depletion is the formation of abnormal links between two components of muscle tissue, actin and myosin which causes muscle stiffening. Calcium leakage into muscle adds to that stiffening.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
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