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Sinus venosus



In embryo, the cavity caudad of cardiac tube where the veins from the intra- and extraembryonic circulatory arcs meet, and receives blood from the vitelline vein, umbilical vein, and common cardinal vein


In mammals, the sinus venosus is distinct in the heart of an embryo. As the embryo develops, the sinus venosus forms a part of the right atrium called sinus of the vena cava.

In other chordates such as fish, amphibians, and reptiles, the sinus venosus persists in adult. It is the chamber receiving blood from veins, and then passing blood into the atrium.


  • saccus reuniens

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Cellphone radiation

... from the cellphone, considering we have SA node near our rudamentary sinus venosus inside the heart... This kind of magnetic wave might have disturb the electric impulses ...

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by victor
Sun Jul 23, 2006 2:53 am
Forum: Human Biology
Topic: Cellphone radiation
Replies: 14
Views: 7027

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