一、肚脐是脐带残端的“遗迹”
要说肚脐是怎么形成的,就要先说说脐带。我们都知道每个胎儿都要在母体中孕育十个月左右才会来到这个世界。在这段漫长的时间里,胎儿是如
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%B0%FC%DA%41%BE%92%B5%E9%C5%C6%D1%A5%BA%CF%D7%F7%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF




