What Is the Correct Order of Events in Muscle Contraction

question 74

Multiple Choice

What is the correct order of events in muscle contraction?

• A) action potential → synaptic cleft → sarcoplasmic reticulum → sarcolemma → calcium ions bind to troponin
• B) action potential → synaptic cleft → sarcolemma → sarcoplasmic reticulum → calcium ions bind to troponin
• C) action potential → sarcoplasmic reticulum → synaptic cleft → sarcolemma → calcium ions bind to troponin
• D) action potential→ sarcolemma → sarcoplasmic reticulum → synaptic cleft → calcium ions bind to troponin
• E) action potential → sarcolemma → synaptic cleft → sarcoplasmic reticulum → calcium ions bind to troponin

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