Compare and Contrast Smooth, Skeletal, and Cardiac Muscle

question 5

Multiple Choice

Compare and contrast smooth, skeletal, and cardiac muscle. Which of the following is NOT an accurate statement?

• A) action potentials can lead to contraction in smooth muscle and skeletal muscle
• B) voltage-gated sodium channels are primarily responsible for the initial depolarization in both smooth muscle and cardiac myocytes.
• C) contraction in smooth, skeletal, and cardiac muscle is mediated by actin and myosin sliding relative to one another.
• D) smooth muscle contracts 100s of times more slowly than skeletal muscle.

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