Which of These Statements Correctly Describes the Refractory Period of Cardiac

question 136

Multiple Choice

Which of these statements correctly describes the refractory period of cardiac muscle?

• A)It lasts longer than the contraction period.
• B)It is much longer than the refractory period in skeletal muscle.
• C) It allows tetanic contraction of the heart to occur to ensure smooth, coordinated ejection of blood from the ventricles.
• D) It lasts longer than the relaxation period.

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