16 為甚麼心臟不會生癌?tvb now,tvbnow,bttvb& y8 h1 N( ^' K' O- n+ h
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。
' ~5 l/ b" v4 Z( n3 Z" Y- C _公仔箱論壇
" E4 R3 y- T, p& `8 |* G公仔箱論壇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 |