The Mechanism of Contraction in Smooth Muscle Is Different from Skeletal

question 56

Multiple Choice

The mechanism of contraction in smooth muscle is different from skeletal muscle in that _.

• A) ATP energizes the sliding process
• B) actin and myosin interact by the sliding filament mechanism
• C) the site of calcium regulation differs
• D) the trigger for contraction is a rise in intracellular calcium

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