The complete sarcomere unit lies within the boundaries of the ____________________.
A) Z disks
B) A bands
C) H zone
D) M band

Question

Quizplus · Accepted Answer

The sarcomere is the functional unit of the muscle fiber, and it extends from one Z disk to the next. Therefore, the complete sarcomere unit lies within the boundaries of the Z disks. The A bands contain the thick filaments (myosin), and the H zone is the region within the A band where only thick filaments are present. The M band is the center of the sarcomere, where the thick filaments are anchored.

The Complete Sarcomere Unit Lies Within the Boundaries of the ____________________