Biology, asked by AparnaBhattacharya, 10 months ago

_________ node way be regreted as a remnant of sinus venosus in mammalian heart

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Answered by praggy24

The sinus venosus is a large quadrangular cavity which precedes the atrium on the venous side of the chordate heart. In mammals, it exists distinctly only in the embryonic heart (where it is found between the two venae cavae); however, the sinus venosus persists in the adult.

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