上腔静脉口
Ostium venae cavae superioris
定义
上腔静脉将上半身的血液回流，开口于右房的上后部，其开口（上腔静脉口）的方向朝向下方及前方。该开口无瓣膜。
參考資料
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
