Q.

With regard to skeletal muscle, which is INCORRECT?

A. the terminal cisterns of sarcoplasmic reticulum lie in contact with T tubules
B. the T tubules surround the muscle at its Z lines
C. the Z line lies within the I band
D. the M line is due to a central bulge in each of the thick filaments
E. the area between two adjacent Z lines is called a sarcomere
Answer» B. the T tubules surround the muscle at its Z lines
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