vena cava
noun [ C ] anatomy specialized uk/ˌviː.nə ˈkeɪ.və/ us/ˌviː.nə ˈkeɪ.və/ venae cavae
腔静脉
one of the two very large veins through which blood returns to the heart, one from the upper body and head and one from all of the body below the chest
The superior (= upper) and inferior (= lower) venae cavae collect blood that has circulated around the body. 上腔静脉和下腔静脉汇集环绕人体流动的血液。