Which Statement About Skeletal Muscles Is True

question 180

Multiple Choice

Which statement about skeletal muscles is true?

• A) In a muscle fiber at rest, calcium is higher in the sarcoplasm than in the sarcoplasmic reticulum.
• B) The dihydropyridine (DHP) receptor is insensitive to action potentials.
• C) Calcium triggers the interaction of actin and myosin and the sliding of filaments.
• D) DHP and ryanodine receptors have a physical gap between them when they are functioning in a skeletal muscle contraction.
• E) The ryanodine receptor is located in the T tubule membrane.

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