Examples of sinoatrial node in a Sentence
Recent Examples on the Web
Each heartbeat starts with an electrical impulse fired by a cluster of cells (called the sinoatrial node) in the right atrium.
—
Christopher Lee, Verywell Health, 25 Sep. 2024
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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Christopher Lee, Verywell Health, 25 Sep. 2024
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 30 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share