sinus venosus

English

Alternative forms

Etymology

Unadapted borrowing from New Latin sinus vēnōsus (“venous hollow”).

Pronunciation

Noun

sinus venosus (plural sinus venosi)

  1. (zootomy) The first chamber of the heart in fish, amphibians, and reptiles, emptying into the right atrium.
  2. (anatomy) 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.

Translations

References

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