Sun-garasho waa tallaabada ugu horeysa ee falcelinta difaaca jirka, halkaas oo unugyada sida Unugyada-T (T-cells) iyo Unugyada-B (B-cells) ay si gaar ah u aqoonsadaan epitopes (qaybo ka mid ah antigen-ka). Aqoonsigani waa mid gaar ah oo keena in unugyada difaacu ay bilaabaan soo saarista difaacyo-jir (antibodies) ama burburinta unugyada cudurka keena.
Muhiimadda:
- Waa tallaabada aasaasiga ah ee nidaamka difaaca.
- Sun-garashadu waxay ka dhigtaa nidaamka difaaca mid awood badan oo la qabsan kara cudurro cusub.
- Haddii sun-garashadu dhacdo si qaldan, waxay keeni kartaa cudurro autoimmune ah.
Tusaale:
Marka jirkaaga uu arko fayras cusub, unugyada difaaca ayaa garanaya (sun-garashadu) qaybo gaar ah oo fayraska ah, kadibna waxay bilaabaan inay la dagaallamaan.
Sun-garasho -- Immunoglobulin