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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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