Lack of O2 and blood being provided to the bones
no ATP is available to release attached actin and myosin molecules
Lack of ATP which prevents muscle relaxation
After death, rigor mortis occurs because of chemical changes within the muscles that causes them to stiffen.
Rigor mortis occurs because the muscles in the corpse contract. This contraction occurs because the calcium ions that are stored in the muscles diffuses and causes the myosin and actin proteins to activate, but not release.
ATP
rigor mortis
Temperature does effect rigor mortis. Low temperatures slow rigor mortis and it is accelerated by high temperatures.
yes it occurs in all living animals not just humans :)
lower eyelid
Rigor Mortis Sets In was created in 1972-11.
The duration of Rigor Mortis - radio - is 1800.0 seconds.
Rigor mortis is a build up of released lactic acid. Rigor mortis starts a few hours after you die, and causes your muscles to contract, or shorten, which is their natural state. After about 12 hours Rigor mortis begins to dissipate.
Rigor Mortis - album - was created on 1988-10-17.
Rigor Mortis - radio - was created on 2003-06-12.