According to the sliding-filament mechanism, the
A) A bands slide in closer between the I bands.
B) Thin filaments slide inward toward the center of the A band.
C) Z lines slide in between the T tubules.
D) Contractile proteins contract, thus shortening the sarcomere.
E) Filaments slide into the lateral sacs of the sarcoplasmic reticulum.
Correct Answer:
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