試題詳解

42.Which of the following statement about the structure of sarcomeres in relaxed and contracted muscles is false?
(A) The I bands form the borders of each sarcomere.
(B) The A bands represent thick filaments.
(C) The thin filaments are within the I bands and extend into the A bands.
(D) In the contracted muscle, the I bands and H bands become shorter.
(E) In the contracted muscle, the Z lines have moved closer together.