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Q. |
Which statement is TRUE regarding cardiac muscle? |
A. | cardiac muscle fibres are multinucleated |
B. | they are smaller than skeletal muscle fibres |
C. | Ca2+ release is triggered by membrane repolarisation |
D. | the elastic ‘Titin” protein component is greater than in skeletal muscle, adding stiffness |
E. | the amount of Ca2+ in the sarcoplasmic reticulum is decreased by catecholamine stimulation |
Answer» B. they are smaller than skeletal muscle fibres |
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