Which of the Following Events Happens During Excitation-Contraction Coupling

question 245

Multiple Choice

Which of the following events happens during excitation-contraction coupling?

• A) The action potential travels down the thin myofilaments
• B) Ca²⁺ is released from the sarcoplasmic reticulum.
• C) Ca²⁺ is taken up by the sarcoplasmic reticulum.
• D) Calcium blocks the binding sites on the actin molecules.

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