In a sarcomere, the myosin filaments are equal in length to the:
A) I band
B) H zone
C) Z line
D) A band

Question

Quizplus · Accepted Answer

The A band represents the length of the thick myosin filaments, while the I band represents the length of the thin actin filaments. The H zone is the region in the center of the A band where there is no overlap between the myosin and actin filaments. The Z line marks the boundary between two sarcomeres and serves as an anchor for the thin actin filaments. Therefore, the myosin filaments are equal in length to the A band.

In a Sarcomere, the Myosin Filaments Are Equal in Length