Question
What describes the SA node's ability to discharge an electrical impulse spontaneously?a. Excitabilityb. Contractilityc. Conductivityd. Automaticity
Step 1
It is often referred to as the "natural pacemaker" of the heart. The ability of the SA node to discharge an electrical impulse spontaneously is known as automaticity. This means that the SA node can generate electrical signals without any external stimulation. Show more…
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