The described sequence leading to fluid movement and hydrolysis decrease is an example of which process?

The described sequence leading to fluid movement and hydrolysis decrease is an example of which process?

• A. Breaking rigor
• B. Algor mortis
• C. Livor mortis
• D. Adipocere formation

Answer: (A)

Rigor mortis and its resolution describe the shift from stiffness to relaxation after death. When life ends, ATP is no longer produced, and muscles lock in place as actin–myosin cross-bridges form and cannot detach, causing stiffness. Over time, proteolytic enzymes break down those muscle proteins, and the stiffness dissipates—the rigor breaks. This breaking phase allows fluids to move within tissues and continues the decomposition process, including hydrolytic changes as tissues break down further. So the sequence described—movement of fluids and changes in hydrolysis as rigidity resolves—is best explained by the breaking of rigor mortis. Other postmortem changes (cooling, blood pooling, adipocere formation) describe different phenomena and do not capture this transition from stiffness to relaxation.

Rigor mortis and its resolution describe the shift from stiffness to relaxation after death. When life ends, ATP is no longer produced, and muscles lock in place as actin–myosin cross-bridges form and cannot detach, causing stiffness. Over time, proteolytic enzymes break down those muscle proteins, and the stiffness dissipates—the rigor breaks. This breaking phase allows fluids to move within tissues and continues the decomposition process, including hydrolytic changes as tissues break down further. So the sequence described—movement of fluids and changes in hydrolysis as rigidity resolves—is best explained by the breaking of rigor mortis. Other postmortem changes (cooling, blood pooling, adipocere formation) describe different phenomena and do not capture this transition from stiffness to relaxation.