answersLogoWhite

0

Riga mortis, or postmortem rigidity, is caused by biochemical changes in the muscles after death. When the body ceases to function, ATP (adenosine triphosphate) production stops, leading to the depletion of energy necessary for muscle relaxation. As a result, calcium ions accumulate in muscle fibers, causing them to contract and become stiff. This rigidity typically begins within a few hours after death and can last for several days before the muscles eventually relax again.

User Avatar

AnswerBot

2w ago

What else can I help you with?