多谢楼主无敌分享!作者: jen198053 時間: 2007-6-5 02:16 PM 標題: there's a mistake
16 為甚麼心臟不會生癌?tvb now,tvbnow,bttvb; F" O: W3 n; s: Z
胃、肝、大腸、睪丸都會生癌,但為甚麼沒聽過有心臟癌呢?原因在於心臟以外的細胞都具有增殖機能,即使受了傷,只要過一段時間就能痊癒,這是因為細胞增殖使傷口癒合,然而心臟的細胞並不會增殖。癌細胞會持續增殖,接著破壞周圍的組織,就是因為心臟細胞不會增殖的關係,所以癌細胞是無法侵襲心臟。 0 |2 ~8 a6 z& v2 T( S3 F公仔箱論壇3 {1 P. X- Y8 i# b* K4 N) }
in fact, the heart is made of muscle, so it can develop cancer too, normally is the cardiac muscle itself, if it's benign, it's called myxoma; if it's malignant, it's called angisarcoma 作者: lirunke 時間: 2007-6-6 08:49 AM