McqMate
| Q. |
Cardiac muscle fibres: |
| A. | develop tetany only at very high stimulation frequencies |
| B. | develop less tension when stretched due to decreased actin-myosin overlap |
| C. | can derive only 5% of basal caloric requirement from fat |
| D. | have a T-system located at the A-I junctions |
| E. | remain absolutely refractory until the membrane potential repolarises to - 50mV |
| Answer» E. remain absolutely refractory until the membrane potential repolarises to - 50mV | |
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