单词	superior vena cava
释义	superior vena cava noun : the branch of the vena cava of a vertebrate that brings blood back from the head and anterior part of the body to the heart Example Sentences Recent Examples on the Web The inferior vena cava and superior vena cava carry blood to the heart. Scott Springer, Cincinnati.com, 1 Nov. 2017 Word History First Known Use 1875, in the meaning defined above Medical Definition superior vena cava noun : a vein that is the second largest vein in the human body, is formed by the union of the two brachiocephalic veins at the level of the space between the first two ribs, and returns blood to the right atrium of the heart from the upper half of the body
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