試題詳解

40. Which of the following statement is correct in a resting skeletal muscle fiber?
(A) Sarcomeres are regions between two H zones.
(B) Discs ofM line proteins called the A band separate the thick filaments.
(C) I bands are composed of the same thick filaments seen in the A bands.
(D) Z lines are adjacent to H zones, which attach thick filaments.
(E) Dark A bands contain overlapping thick and thin filaments with a central thin H zone composed only of thick filaments.