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Describe the cardiac cycle, using the terms systole and diastole. What is the role of the SA node and the AV node in the cardiac cycle? (pages $97-99$ )
Step 1
This contraction pumps blood from the atria into the ventricles. This can be represented as: \[ \text{Atrial Systole} \rightarrow \text{Blood flow from Atria to Ventricles} \] Show more…
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