Which part of the sarcomere stays almost the same size during contraction?
A) A-band
B) I-band
C) H-band
D) None of the parts of the sarcomere stays the same size during contraction.

Question

Quizplus · Accepted Answer

The A-band, which contains the length of the thick filaments, remains almost the same size during muscle contraction, while the I-band and H-zone shorten as the muscle contracts.

Which Part of the Sarcomere Stays Almost the Same Size