Daim tawv nqaij Phototype yog dab tsi?

Cov txheej txheem:

Fitzpatrick daim tawv nqaij hom 6

Video: Daim tawv nqaij Phototype yog dab tsi?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Cov daim tawv nqaij daim ntawv kev cais tawm tau tsim los ntawm Thomas B. Fitzpatrick xyoo 1975. Nws yog ua raws qhov kev nkag siab ntawm cov tawv nqaij rau sunburn thiab muaj peev xwm ntawm cov tawv nqaij rau tan. Melanin yog txoj kab tseem ceeb ntawm kev tiv thaiv ntuj rau tawv nqaij tiv thaiv kev puas tsuaj ultraviolet rays ntawm lub hnub.

Ntxiv mus, daim tawv nqaij hom 5 yog dab tsi?

Cov neeg nrog hom tawv nqaij V muaj txiv ntseej los yog tsaus tawv nqaij laus thiab suav nrog cov tawv nqaij African-Asmeskas, Khab thiab cov uas nyob nruab nrab Sab Hnub Tuaj zoo. Lawv tan yooj yim thiab tsis tshua muaj hlawv. Qhov no hom tawv nqaij kuj tuaj yeem tsim cov pigmentation tsawg dua hu ua Hypopigmentation lossis thaj chaw lightened, tom qab hlawv lossis lwm yam raug mob.

Ib qho ntxiv, lub hom phiaj ntawm Fitzpatrick daim tawv nqaij daim duab kab ke yog dab tsi? Cov Fitzpatrick nplai (ib yam Daim tawv nqaij Fitzpatrick kev xeem ntaus ntawv; los yog Fitzpatrick duab nplai ) yog kev faib ua zauv rau tib neeg tawv nqaij xim Nws tau tsim xyoo 1975 los ntawm Thomas B. Fitzpatrick raws li ib txoj hauv kev los kwv yees cov lus teb ntawm ntau hom tawv nqaij rau ultraviolet (UV) lub teeb.

Ua kom pom qhov no, Phototype txhais li cas?

Yees duab tuaj yeem xa mus rau lub tshuab luam ntawv hlau, qee zaum tau npaj siv photogravure los tsim cov duab hauv luam ntawv. Lub thaiv yuav yog ib qho duab halftone. Daim duab kuj tseem tuaj yeem xa mus rau hom teeb tsa siv txheej txheem phototypesetting los npaj nplooj ntawv rau duab thaij duab. Cov txheej txheem no hloov cov ntawv kub hlau.

Dab tsi yog rau hom Fitzpatrick ntawm daim tawv nqaij?

Fitzpatrick daim tawv nqaij hom 6

xim tawv nqaij (ua ntej hnub raug lub hnub): ua rau cov xim daj tsaus nti rau xim av tsaus.
qhov muag xim: xim av dub.
ntuj plaub hau xim: dub.
tshuaj tiv thaiv tshav ntuj: tsis txhob quav ntsej, tsis txhob kub hnyiab, thiab ib txwm tsaus ntuj nti.

Pom zoo:

Dab tsi yog txheej txheej sab saum toj ntawm daim tawv nqaij nyob ib sab ntawm daim tawv nqaij?

Lub dermis txuas cov epidermis mus rau hypodermis, thiab muab lub zog thiab kev ywj pheej vim muaj cov collagen thiab elastin fibers. Nws tsuas muaj ob txheej: txheej txheej papillary nrog papillae uas nthuav mus rau hauv daim tawv nqaij thiab qis dua, txheej txheej reticular uas muaj cov ntaub so ntswg sib txuas xoob

Dab tsi yog qhov txawv ntawm daim tawv nqaij thiab daim tawv nqaij daim ntawv xeem?

Qauv: Sib sib zog nqus ntawm daim tawv nqaij; connective ntaub so ntswg muaj li ntawm ob txheej. Muaj nuj nqi: Muaj lub luag haujlwm rau cov txheej txheem muaj zog thiab yoog raws ntawm daim tawv nqaij; lub epidermis pauv cov pa roj, cov khoom noj, thiab cov khoom pov tseg nrog cov hlab ntsha hauv lub dermis

Puas yog lo lus dav dav txhais tau tias yog mob ntawm daim tawv nqaij lossis pob khaus uas tuaj yeem muaj ntau yam ua rau nws yog ib qho cim ntawm ntau hom tawv nqaij tsis xws luag?

Dermatitis yog lo lus dav dav uas piav txog kev ua rau tawv nqaij. Dermatitis yog ib yam mob uas muaj ntau yam ua rau thiab tshwm sim ntau yam. Nws feem ntau yog khaus, tawv nqaij qhuav los yog pob khaus ntawm daim tawv nqaij o, reddened

Npaum li cas ntawm daim tawv nqaij thiab daim tawv nqaij?

txog 2 hli Ua raws li qhov no hauv kev txiav txim siab, tuab npaum li cas ntawm cov epidermis nyob tom qab? Dermis thiab subcutaneous rog Nws yog tuab (nruab nrab 1 txog 4 hli) tshaj li daim tawv nqaij uas yog hais txog nyias li daim ntawv.