Relaxation of the heart muscle occurs during repolarization as calcium is actively transported back into the SR and extruded into the extracellular fluid, along with K+ efflux.
1. Ca is actively transported back into SR 2. Ca is also actively extruded back into extracellular fluid 3. This along with K+ efflux causes relaxation of the heart muscle How does the AP trigger contraction of the heart muscle by the sliding filament mechanism during
| Front | How does the AP trigger contraction of the heart muscle by the sliding filament mechanism during repolarization? |
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| Back | 1. Ca is actively transported back into SR 2. Ca is also actively extruded back into extracellular fluid 3. This along with K+ efflux causes relaxation of the heart muscle How does the AP trigger contraction of the heart muscle by the sliding filament mechanism during |
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