Actin and myosin filaments are both present in the dense region called the
A)A band.
B)Z line.
C)H zone.
D)I band.
E)M band.

Question

Quizplus · Accepted Answer

Actin and myosin filaments both make up the A band, which is the densest area of the sarcomere. The Z line separates the sarcomeres, the H zone is the area in the middle of the A band where there is only myosin filaments, the I band is the area where there is only actin filaments, and the M band is the area in the middle of the sarcomere where the myosin filaments are held together.

Actin and Myosin Filaments Are Both Present in the Dense