A) the absence of myofibrils in the central portion of A-band
B) the central gap between myosin filaments in the A-band
C) the central gap between actin filaments extending through myosin filaments in the A band
D) extension of myosin filaments in the central portion of the A-band.
Correct Answer: C
Solution :
Central part of thick filament, not overlapped by thin filaments, is called the 'H' zone. 'H' zone is also called Hensen's line.
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