Which of the Following Is True of Cardiac Muscle

question 9

Multiple Choice

Which of the following is true of cardiac muscle?

• A) Cardiac muscle tissue has both an intracellular and extracellular source of Ca⁺⁺.
• B) Cardiac muscle tissue has slow Ca⁺⁺ voltage gates in the membrane that make cardiac muscle incapable of tetanus.
• C) In cardiac muscle tissue, excitation spreads from cell to cell via intercalated disks.
• D) Cardiac muscle tissue does not require nerve activity to stimulate a contraction.
• E) All of these are true of cardiac muscle.

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