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Reedley College Events of an Action Potential in Cardiac Muscle and Cardiac Cycle Discussion

I’m studying for my English class and don’t understand how to answer this. Can you help me study?

Explain the events of an action potential in cardiac muscle.
- Indicate the importance of calcium ions to the contractile process
- Describe the conducting system of the heart, and identify the electrical events associated with a normal electrocardiogram.
Explain the events of the cardiac cycle.
- Include atrial and ventricular systole/diastole
- Relate the heart sounds to specific events in the cycle.