Cytological Examination of Resting and Contracted Muscle Provides Important Support

Multiple Choice

Cytological examination of resting and contracted muscle provides important support for our current model for how skeletal muscle contracts. This evidence includes the observation that during contraction the

A) muscle fibers change color.
B) Z lines move farther apart.
C) microtubules disassemble.
D) length of the thick and thin filaments change significantly.
E) H zone becomes smaller.