Identify the incorrect statement regarding mu | vedclass

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(C) According to the Sliding Filament Theory,during muscle contraction,the thin filaments (actin) slide over the thick filaments (myosin). $1$. The $A

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Length of filaments decreases.

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(C) According to the Sliding Filament Theory,during muscle contraction,the thin filaments (actin) slide over the thick filaments (myosin). $1$. The $A$-band (anisotropic band) remains constant in length because the myosin filaments do not change their length. $2$. The $I$-band (isotropic band) decreases in length as the actin filaments move deeper into the $A$-band. $3$. The $Z$-lines move closer to each other,shortening the sarcomere. $4$. The length of the individual filaments (actin and myosin) does not change; only their degree of overlap changes. Therefore,the statement that the length of filaments decreases is incorrect.

Identify the incorrect statement regarding muscle contraction.

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