In Cardiac Muscle, the T-Tubules are Located

Question

In cardiac muscle, the T-tubules are located
A) along the Z disk
B) In the center of the I band
C) In the center of the A band
D) At the junction of the I band and the A band
E) In the center of the H zone or H band

Accepted Answer

In cardiac muscle, the T-tubules are located at the Z disk, which is different from skeletal muscle where they are located at the junction of the A and I bands.