sinus venosus
si·nus ve·no·sus
noun \ˈsī-nəs-vi-ˈnō-səs\Definition of SINUS VENOSUS
: an enlarged pouch that adjoins the heart, is formed by the union of the large systemic veins, and is the passage through which venous blood enters the heart in lower vertebrates and in embryos of higher forms
Origin of SINUS VENOSUS
New Latin, venous sinus
First Known Use: circa 1839
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