Rigor mortis occurs because ________.
A) the cells are dead
B) sodium ions leak into the muscle causing continued contractions
C) no ATP is available to release attached actin and myosin molecules
D) proteins are beginning to break down, thus preventing a flow of calcium ions

Question

Quizplus · Accepted Answer

Rigor mortis occurs due to a lack of ATP, which is required for the detachment of actin and myosin molecules. Without ATP, the myosin and actin molecules remain attached, causing the muscles to become stiff and unable to relax.

Rigor Mortis Occurs Because ________