檢視下静脉的原始碼

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| style="background: #008080" align= center|  '''<big>下静脉</big> '''

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[[File:U=1236051564,4251681733&fm=26&gp=0.jpg|缩略图|居中|[https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1236051564,4251681733&fm=26&gp=0.jpg 原图链接][https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E4%B8%8B%E8%85%94%E9%9D%99%E8%84%89&step_word=&hs=0&pn=4&spn=0&di=167310&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=1236051564%2C4251681733&os=2669822079%2C3802439758&simid=3093131281%2C3640034394&adpicid=0&lpn=0&ln=1545&fr=&fmq=1608360211699_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Ftimgsa.baidu.com%2Ftimg%3Fimage%26quality%3D80%26size%3Db9999_10000%26sec%3D1608370336255%26di%3Da25c9ac8f9b5a8b4673af2c379e30231%26imgtype%3D0%26src%3Dhttp%3A%2F%2Fwww.rensheng2.com%2Fupload%2F2015%2F10%2F22%2Ff9d08ed6-53f2-4b98-b62c-7618b1e655dd.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fooo_z%26e3B6jgfijg2d_z%26e3Bv54AzdH3Fc0aaaaAzdH3Fcm9n8b_z%26e3Bfip4s&gsm=5&rpstart=0&rpnum=0&islist=&querylist=&force=undefined来自 百度 的图片]]]

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下腔静脉体内最大的静脉干，为下腔静脉系的主干，在第5腰椎平面，由左、右髂总静脉合成，沿腹主动脉右侧上升，经肝的后方，穿膈的腔静脉孔入胸腔，进入右心房。收集下肢、[[盆腔]]和腹腔的[[静脉血]]。当下腔静脉阻塞时，在[[腹壁]]的两侧、脐平面以下可见到曲张[[血管]]。