Question

Which of the following is true for the labelled parts in the figure below?

• A. A - Z-line - located at centre of I - band
• B. B - Thin filament - occurs in A-band only
• C. C - Thick filament - confined to I-band
• D. D - H-zone - located at centre of M-line

Answer 1

Answer: (A)

A - Z line : located at centre of I-band.
B - Thin filament : occurs in both I-band and A-band.
C - Thick filament : occurs in A-band.
D - H-zone - present at the centre of A- band.