An example of electromechanical coupling in smooth m uscle is activation of contraction by A) Release of Ca₂+ via G B) Increased cytosolic [Ca₂+] through voltage-gated Ca₂+ cha nn els C) Activation of protein phosphatase via G -protein coupled receptors D) Ca₂+ release through RyR E) Ca₂+ uptake into the SR m ediated by phospholamban phosphorylation

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Increased cytosolic [Ca^2+] through voltage-gated Ca^2+ channels is an example of electromechanical coupling in smooth muscle, where electrical signals lead to mechanical actions such as muscle contraction.

An Example of Electromechanical Coupling in Smooth M Uscle Is