檢視静脉（汉语词汇）的原始碼

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| style="background: #008080" align= center|  '''<big>静脉 （汉语词汇）</big> '''

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[[File:U=3918861623,432375942&fm=26&gp=0.jpg|缩略图|居中|[https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=3918861623,432375942&fm=26&gp=0.jpg 原图链接][https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E9%9D%99%E8%84%89&step_word=&hs=0&pn=12&spn=0&di=215820&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=3918861623%2C432375942&os=2605964197%2C4124828658&simid=3377371557%2C266190673&adpicid=0&lpn=0&ln=906&fr=&fmq=1608445568817_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%3D1608455856611%26di%3D654c7d762e2349341c976d2037dd46be%26imgtype%3D0%26src%3Dhttp%3A%2F%2Fthumbs.dreamstime.com%2Fx%2F%E5%8A%A8%E8%84%89%E9%9D%99%E8%84%89-13200439.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fvg_z%26e3B16jw4fpt4j_z%26e3Bv54AzdH3F%25Ec%25bc%25bD%25E0%25bl%25bb%25E0%25Ab%25bE%25Ec%25BA%25ln%25Ec%25AD%25lb%25Ec%25lB%25BE%25E0%25bl%25b0-%25Ec%25bA%25Ab%25Eb%25b9%25bl%25El%25lD%25ll%25Eb%25b9%25bl-t4w2j8ndaa9nl&gsm=d&rpstart=0&rpnum=0&islist=&querylist=&force=undefined 来自 百度 的图片]]]

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静脉是收集回流[[血液]]入心脏的血管，常同相应的动脉伴行，数目比动脉多，管径较粗，容血量多。体循环中约65～70%的血含于静脉中（门脉系统、肝和脾贮存的血除外）。肺循环中静脉含血约50～55%。静脉管壁比[[动脉薄]]而柔弱，弹性也小，故在固定染色的切片中，管壁常瘪陷，管腔变扁或呈不规则形。