A) thin filaments to Z line
B) thick filaments to Z line
C) thin filaments to thick filaments
D) thick filaments to M line.
Correct Answer: C
Solution :
: Titin (a large protein) forms a third filament system, allowing muscle to spring back into shape after being Stretched. It reaches from the Z line to the M line, with a single filament measuring over 1 mm in length. Part of the molecule overlaps the A band (where actin and myosin overlap) and part overlaps the\[I\]band (mainly actin). Thick filament, confined to the A band, contains chiefly the protein myosin. The thin filament, lies in the I band and extends into the A band but not into its H zone.
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