Sliding filament theory can be best explained as:

Actin and myosin filaments do not shorten but rather slide each other

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When myofilaments slide each other, myosin filaments shorten while actin filaments do not shorten

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When myofilaments slide each other actin filaments shorten while myosin filament do not shorten

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Actin and myosin filaments shorten and slide each other

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Solution

The correct option is C When myofilaments slide each other actin filaments shorten while myosin filament do not shorten
Sliding filament theory explains that the thin myofilaments (actin filament) slide over the thick myofilaments (myosin filament) to penetrate deeper into the bands in the contracting muscle fibres. When myofilaments slide each other actin filaments shorten while myosin filament do not shorten, remains same.

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