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  1. #1
    Demarco is offline Junior Member
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    SA node derivation...

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    Does anyone know specifically where SA node derives from? In a broad sense, it is from mesoderm -- but is there a particular cell that gives rise to the SA node?


    Thanks

  2. #2
    usmlethinking is offline Junior Member 510 points
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    The sinus venosus gives rise to the conduction system, therefore, the SA node is also from this sinus venosus.
    PGY1 at Skipper's Medical Univeristy of the Dutch West Indies Internal Medicine Residency Program

  3. #3
    Demarco is offline Junior Member
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    Yeah ..that make so much sense ... cuz the Right Sinus Venosus give rise to the smooth part of the Right atrium ...

    Thanks USMLETHINKING

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