Examples of sinoatrial node in a Sentence
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Calcium does this by flowing in and out of your heart cells after being triggered by an electrical signal from the sinoatrial node, or the heart's natural pacemaker.
—
Sara Hoffman, Verywell Health, 6 May 2026
The heart’s pulse rate can be higher than this number if the sinoatrial node initiates a heartbeat naturally.
—Virginia Singla, Discover Magazine, 15 Dec. 2023
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Sara Hoffman, Verywell Health, 6 May 2026
The heart’s pulse rate can be higher than this number if the sinoatrial node initiates a heartbeat naturally.
—Virginia Singla, Discover Magazine, 15 Dec. 2023
Cite this Entry
“Sinoatrial node.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sinoatrial%20node. Accessed 11 May. 2026.
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