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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Definitions:

Distributive Property

A property indicating that multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products.

Principal Investment

The initial amount of money invested, before any earnings or interest.

Simple Interest

A method of calculating the interest charge on a loan or financial investment based on the initial principal and a fixed interest rate over time.

Interest Rate

The proportion, typically expressed as a percentage, at which interest is charged on a loan or paid on savings.