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Myofilament are long tubular structures inside of muscle cells that are made up of shorter contractile sections called sarcomeres.
The thin myofilament of skeletal muscles is made of the globular protein called actin.
The thick myofilaments are formed from a protein called myosin.
protein that makes up thin myofilament
myofilament myofibril myofiber fascicle muscle
Actin (thin myofilament), myosin (thick myofilament), calcium, and ATP (energy).
Myosin
myofilament
muscle
Myosin
I is called a "Stall"
Fascicle (largest) Fiber Myobibril Myofilament (smallest)