<unk>  (Latin:<unk>  "stiffness", and<unk>  "of death"), or postmortem rigidity, is the third stage of death. It is one of the recognizable signs of death, characterized by stiffening of the limbs of the corpse caused by chemical changes in the muscles postmortem (mainly calcium). In humans,<unk>  can occur as soon as four hours after death. Contrary to folklore and common belief,<unk>  is not permanent and begins to pass within hours of onset. Typically, it lasts no longer than eight hours at "room temperature".
Rigor mortis
Pallor mortis
Livor mortis
Algor mortis
Pes cavus
Morsicatio buccarum
Palisade 
Wooden chest syndrome