Uruhu rusanzwe rufite ubushobozi bwo gukurura urumuri kugirango rurinde ingingo nuduce twumubiri mumubiri kwangirika kwurumuri. Ubushobozi bwumucyo bwo kwinjira mubice byumuntu bifitanye isano rya bugufi nuburebure bwumurambararo n'imiterere yinyama zuruhu. Mubisanzwe, igihe kigufi cy'umuraba, ntigishobora kwinjira mu ruhu. Uruhu rwuruhu rwinjiza urumuri hamwe no guhitamo kugaragara. Kurugero, keratinocytes muri stratum corneum irashobora gukuramo imirasire nini ya ultraviolet imirasire ngufi (uburebure bwumuraba ni 180 ~ 280nm), hamwe na selile izunguruka murwego rwa spinous na melanocytes murwego rwibanze bikurura imirasire miremire ya ultraviolet ( uburebure bwa 320 nm ~ 400nm). Uruhu rwuruhu rwinjiza urumuri rutandukanye rwumucyo muburyo butandukanye, kandi imirase myinshi ya ultraviolet yakirwa na epidermis. Mugihe uburebure bwiyongera, urwego rwo kwinjira mumucyo narwo rurahinduka. Imirasire yimirase hafi yimashini itukura yinjira mubice byimbitse byuruhu, ariko byinjizwa nuruhu. Umuhengeri muremure (uburebure bwa 15 ~ 400μm) winjira nabi cyane, kandi ibyinshi byinjizwa na epidermis.
Ibyavuzwe haruguru ni ishingiro ryibanze kogusesengura uruhuirashobora gukoreshwa mugutahura ibibazo byimbitse byuruhu. Uwitekagusesengura uruhuikoresha ibintu bitandukanye (RGB, Itara ryambukiranya urumuri, urumuri ruringaniye, urumuri rwa UV nu mucyo wa Wood) kugirango rureme uburebure butandukanye kugirango umenye ibibazo byuruhu kuva hejuru kugeza kurwego rwimbitse, bityo iminkanyari, imitsi yigitagangurirwa, imyenge nini, ibibanza hejuru, ibibanza byimbitse, pigmentation, pigmentation, inflammation, porphirine nibindi bibazo byuruhu byose bishobora gutahurwa nisesengura ryuruhu.
Igihe cyo kohereza: Apr-12-2022
