点击图片查看原图
正如刚刚所说，脐带在胎儿出生不久后就失去了运输血液的功能，逐渐萎缩、退化变成解剖上称为“韧带”的纤维条索，根据另一端连接部位的不同又分为肝圆韧带、脐内侧韧带、脐膀胱韧
%CE%CF%C5%A3%CF%B4%C5%C6%BB%FA%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%CE%CF%C5%A3%CF%B4%C5%C6%BB%FA%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%CE%CF%C5%A3%CF%B4%C5%C6%BB%FA%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%CE%CF%C5%A3%CF%B4%C5%C6%BB%FA%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
手工加工撲克密碼牌