Excitation-Contraction Coupling in Muscle Contraction

Diffusion of Na+ into the cell

Binding of Ca2+ to troponin

Opening of voltage-gated Ca2+ channels on the plasma membrane (correct)

Opening of voltage-gated K+ channels

Open voltage-gated K+ channels

Bind to troponin to stimulate contraction (correct)

Inhibit the binding of troponin to actin

Stimulate the contraction of myofibrils

Regulate the release of Ca2+ from the Sarcoplasmic reticulum

Allow Ca2+ to diffuse into the cell and stimulate the opening of calcium release channels (correct)

Stimulate the release of Na+ from the Sarcoplasmic reticulum

Inhibit the contraction of myofibrils

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<p>Diffusion of Ca2+ into the cell</p> Signup and view all the answers