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Actin and myosin
Actin Filaments
The myosin heads detach from actin, allowing the muscles to relax; prior to rigor mortis, Directly after death ATP is not produced therefore, Ca +2 is absent within the myosin binding sites on the actin, which leads to the myosin heads not being able to detach from actin, this condition doesnt allow the muscle to relax, aka rigor mortis. For the muscle to relax or for rigor mortis to cease the myosin heads detach from actin.
Actin is a contractile protein fibers present in muscles.It occurs in two forms a.monomeric G actin b. polymeric F ACTIN.
Actin was discovered by Straub in 1942.
Actin
Actin is a globular molecule
Actin Changes ShapeApexMyosin binds to ActinAPEX
Assuming you meant microfilament, it is mostly comprised of linear polymers of actin, or actin filaments. Some use "actin filament" (or sometimes just "actin") and "microfilament" interchangably.
sayy you no imm trinna get wit you so STOP actin Shady
Actin is thin, pulled together by myosin.
Actin