Kukho iintlobo ezininzi ezahlukeneyo zeeketile zombane kwimarike kwaye amaxabiso azo ahluke kakhulu. Kodwa into efunwa ngabantu kukuthembeka nokuzinza. Ke ngoko, abavelisi beketile yombane ngokuthe ngcembe basebenzisa ubuchule obutsha - ukuwelda ngelaser, ukuwelda umzimba weketile.