Locomotion and MovementHard
Question
Rigor mortis (stiffness after death) occurs due to muscle contraction. However, it lasts for 24 hours and then disappears. This is because
Options
A.Ca2+ channels in the sarcoplasmic reticulum are closed after 24 hrs
B.Contraction is an energy requiring process. Since ATP synthesis ceases after death, contraction also ceases
C.Proteolytic enzymes from lysosomes digest the cross linkges between myosin and actin
D.All of the above
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