How Adrenaline and Acetylcholine Affect Heart Rate

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How Adrenaline and Acetylcholine Affect Heart Rate

In this episode, I discuss the effect of Adrenaline and Acetylcholine on heart rate. Adrenaline speeds it up and Acetylcholine slows it down. They both have their effect by modifying the conductance for ions such as Sodium, Potassium and Calcium across the membrane of the cells of the SA node. Watch the video to find out how :)

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