What structure runs the length of the sarcomere and contributes to the elastic recoil in muscle?
A)Z disk
B)titin
C)M line
D)actin

Question

Quizplus · Accepted Answer

Titin is a large structural protein that runs the length of the sarcomere and contributes to the elastic recoil and passive tension in muscle. It connects the Z disk to the M line and helps stabilize the myosin filaments in place. The other options (A, C, and D) are also important components of the sarcomere, but they do not contribute to the elastic recoil in the same way that titin does.

What Structure Runs the Length of the Sarcomere and Contributes