<P> Cadaveric spasm , also known as postmortem spasm , instantaneous rigor , cataleptic rigidity , or instantaneous rigidity , is a rare form of muscular stiffening that occurs at the moment of death and persists into the period of rigor mortis . Cadaveric spasm can be distinguished from rigor mortis being stronger stiffening of the muscles that ca n't be easily undone like rigor mortis . The cause is unknown , but is usually associated with violent deaths happening under extremely physical circumstances with intense emotion . </P>
<P> Cadaveric spasm , also known as postmortem spasm , instantaneous rigor , cataleptic rigidity , or instantaneous rigidity , is a rare form of muscular stiffening that occurs at the moment of death and persists into the period of rigor mortis . Cadaveric spasm can be distinguished from rigor mortis being stronger stiffening of the muscles that ca n't be easily undone like rigor mortis . The cause is unknown , but is usually associated with violent deaths happening under extremely physical circumstances with intense emotion . </P>
what is it called when a dead body moves
what is it called when a dead body moves
Cadaveric spasm postmortem spasm instantaneous rigor cataleptic rigidity instantaneous rigidity
Cadaveric spasm postmortem spasm instantaneous rigor cataleptic rigidity instantaneous rigidity