PHYSIOLOGY
SLIDING FILAMENT MODEL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ATP synthesis stops when breathing stops
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Muscles stiffen at 3 to 4 hours after death
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Calcium is still within muscles, so it continues to attach Myosin and Actin
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Actin and Myosin become irreversibly linked producing stiffness of Rigor Mortis
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Only due to the eventual denaturation of protein does Rigor Mortis gradually disappear 24 to 36 hours after death
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Detailed explanation-1: -Rigor mortis generally disappears 36 hours after death, followed by a phase known as secondary flaccidity. The late post-mortem phase is when the body tissue starts disintegrating and is primarily describable as decomposition or putrefaction, adipocere formation, mummification, or skeletonization.
Detailed explanation-2: -Rigor mortis is a recognizable indication of death characterized by muscles stiffening and locking into place. At normal temperatures, rigor mortis starts around four hours following death. Rigor mortis is a temporary condition. After a total of about eight hours after death, muscles relax again.
Detailed explanation-3: -Biochemical changes in the body produce stiffening, the rigor mortis that usually appears within 2 to 6 hours after death. Rigor mortis begins in the muscles of the jaw and neck and proceeds downwards in the body to the trunk and extremities and complete within 6 to 12 hours.