Answer:
When they stop receiving energy in the form of ATP, the muscle fibers and sarcomeros stagnate in one position and hypertrophy, that is why sometimes post-mortem facial expressions are very noticeable since the facial muscle was not relaxed. .
On the other hand, it is not only the energy source that stops being supplied due to systemic failure but also due to the accumulation of gaseous collection by decomposition that makes movements impossible and stagnates the joints and muscular structures.
Explanation:
Rigor mortis is an irreversible systematic tetanization that occurs in all the dead, there are no exceptions.
