What structure runs from Z line to Z line? Sarcomere

The movement of the troponin-tropomyosin complex requires _______ Ca2+.

The actin filament is a polymer formed from 300 to 400 globular subunits called ______ Gactin.

A myofilament is the _________. Protein strand composed of actin or myosin

T tubules ________. Conduct action potentials deep into the muscle cell

A drug that interferes with the active transport of calcium ions from the sarcoplasm back into

the sarcoplasmic reticulum would...
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