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During contraction, which of the following decrease in length? [Select all that apply]

A. Myosin filaments
B. H-Zone
C. A-Band
D. Actin filaments
E. I-Band


Sagot :

Final answer:

Muscle contraction shortens actin filaments, the H zone, and the I band.


Explanation:

During muscle contraction, actin filaments, the H zone, and the I band decrease in length. The actin filaments slide over the myosin filaments, causing the I band and H zone to shorten. The A band remains the same length as the myosin and actin overlap.


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