Nigute wakoresha urumuri

1 ,.shyira ahagaragarani ubanza gukubitwa mumwanya wizuru, ikiraro cyizuru hamwe na bike.

2, izuru rizamurika izuru rizagaragara rito kandi rigororotse, isura nayo izagabanuka muburyo bugaragara.

3,shyira ahagaragaraigice cyo hepfo yijisho, ni ukuvuga umwanya wibinyoma bya silkworm, birasabwa guhitamo silty irushijeho kuba nziza, kwibanda ku guhanagura munsi yijisho

Umwanya wa kare, urambuye gato ibumoso n'iburyo.

4, Shira mu ifu yoroheje, oza uruhanga rwumutwe, agace C, ariko agahanga igihe cyose hejuru yoroheje, umusaya urashobora kuba muremure cyane

Uzamure agace C gato.

5. Uruhande rwo hepfo rwamagufwa yikiganza rwuzuyemo ibintu bimwe na bimwe byingenzi, convex ya orbital iragaragara, kandi imbere yijisho rihinduka ibice bitatu.