Which of the Following Statements About Cardiac Muscle Is Incorrect

question 113

Multiple Choice

Which of the following statements about cardiac muscle is incorrect?

• A)Cardiac muscle forms an electrically coupled mass called a syncytium.
• B)Much of the calcium necessary for contraction comes from outside the cell.
• C)In cardiac muscles, the T-tubules form dyads rather than the triads formed in skeletal muscles.
• D)All of the above statements are correct.

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