Also known as: SA+, SA/
SA stands for various terms. Discover the full forms, meanings, and possible interpretations of SA across different fields and industries.
The sinoatrial node is a group of cells positioned on the wall of the right atrium, near the entrance of the superior vena cava. These cells are specialized cardiomyocytes. Though they possess some contractile filaments, they do not contract robustly.
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