Inguqulelo echanekileyo yeempawu zesikhumba sesikhumba yindlela esihlala ngayo ulusu. Ihamba nabantu xa bezalwa. Yenziwe yimiqolo yesikhumba egobileyo kunye nee-skin crests, ezizii-polygon ezizinzileyo kwaye azitshintshi kangako. Ukujonga ngqo ulusu olungenanto, ungabona imiqolo eyinkimbinkimbi, engaqhelekanga, kunye neenwele ezintle ezinombala onzima okanye okhanyayo. Nangona kunjalo, ngokuhamba kwexesha, abantu bayaqhubeka nokwaluphala, kwaye ulusu nalo luyaguga kancinci kancinci. Kwangaxeshanye, ulusu oluhlala luvezwa luya kuba neengxaki zangaphandle ezifana nongcoliseko lokusingqongileyo, kwaye luqhubeke nokwenzakala, kwaye izinga lomonakalo kwiiseli ze-stratum corneum liya kutshintsha. Inani lemiqolo yesikhumba kunye nee-skin ridges liyatshintsha, kwaye imo ezinzileyo nayo ibonakala ibotshelelwe, inani liyancipha, kwaye indawo yomphezulu iyaqhubeka nokukhula, ngoko ke ulusu luba nemibimbi kwaye lurhabaxa.
Ngokwesiqhelo, ngaphambi kokuba umntu abe neminyaka engama-25 ubudala, umphezulu wolusu uba bushelelezi, ukhazimla, kwaye uyanwebeka. Emva koko, nangona kunjalo, ulusu luqala ukwaluphala kancinci kancinci kwaye iimpawu zomzimba zihlala zitshintsha.
1. Ukufuma kolusu kunye nomqobo wolusu
Uninzi lophando ngesikhumba esirhabaxa lugxile kwimisebenzi ye-stratum corneum, njengomsebenzi wokugcinwa kwamanzi kunye nomsebenzi wesithintelo sesikhumba. Njengokufunda ngomswakama, izinto zendalo zokufumisa, kunye notshintsho lwamafutha phakathi kweeseli ze-stratum corneum. Ukulahleka komswakama kukhulu, okubangela ukuba ulusu lube mdaka kwaye lube luhlaza. Ukuchitheka kweeseli ze-epidermal kuyaphazamiseka, okubangela ukuveliswa kwe-dandruff kunye namaxolo. Umxholo womswakama wesikhumba unxulumene ngokusondeleyo nokufuma, ukukhazimla kunye nobuhle besikhumba. I-stratum corneum egudileyo, enamanzi amaninzi ibonakaliswa rhoqo ukwenza ukukhanya okukhanyayo, ngelixa i-stratum corneum eyomileyo, eneziqwenga ibonakaliswa ngendlela engaqhelekanga eyenza ulusu lubonakale lungwevu. Ngomthamo womswakama omncinci eluswini, ulusu luba lomile kwaye lurhabaxa, kwaye ulusu luba buthuntu.
Ulusu olunomsebenzi omncinci wokuthintela lufana nesambrela esaphukileyo. Alupheleli nje ekubeni amanzi angaphakathi aphele ngokulula, kodwa izinto zangaphandle zingena lula, kwaye ukudumba kuyenzeka. Ezifana neengxaki zesikhumba ezinxulumene nokudumba: ukurhawuzelela, ukuba rhabaxa, ukuxobuka, ukurhawuzelela, ukuba bomvu, njl. Iingxaki zesikhumba eziphindaphindayo ezibangelwa kungelulo uhlobo lwesikhumba kodwa kukudumba okungapheliyo ngaphakathi kwesikhumba.
I-epidermis ehlala ijongeka ibonakalisa ukuqina kwayo xa umonakalo umncinci, kunye nokuwohloka xa umonakalo unzima. Iiseli zomaleko osezantsi zatshintshwa yi-atypia ecacileyo, kwaye kwakukho inani elikhulu leeseli ze-dyskeratotic.
2. I-dermis ilahlekelwa bubuthambile bayo
Ukurhabaxa kwesikhumba kunxulumene kakhulu nokuthamba kwesikhumba. Ukuthamba kwesikhumba kuyancipha, ukungakwazi ukuqina kwesikhumba okanye imibimbi kuyabonakala, kwaye ukurhabaxa kwesikhumba kuyanda. Ii-Fibroblast zezona zinto zibalulekileyo kwi-dermis yesikhumba kwaye zidlala indima ebalulekileyo ekwakhiweni kweefayibha ezifihlakeleyo kunye ne-extracellular matrix. Zidlala indima ebalulekileyo ekulungisweni kwamanxeba ezicubu. Njengoko ulusu lukhula, ubukhulu besikhumba buyancipha njengoko umxholo wefayibha elastiki eluswini uncipha kancinci kancinci. Ukuguga kwesikhumba kuyaphawuleka, okunokubonwa njengolusu olomileyo nolurhabaxa, imibimbi eyandayo nenzulu, ulusu olukhululekileyo, kunye nokuthamba okunciphileyo. Ubudala buhamba nokuncipha komxholo weproteni yesikhumba, ukungabikho kokuqina kwesikhumba, kunye nokwanda kobunzulu bobume besikhumba okukhokelela ekubonakaleni kwemibimbi.
Ngoko ke ngaphambi kokuba kubekho iingxaki zolusu, sisenezinto ezininzi ekufuneka sizenze. Umzekelo,isihlalutyi solusuingasinceda sinciphise okanye sisombulule iingxaki zolusu ukuya kuthi ga kwinqanaba elithile ngaphambi kokuba iingxaki zolusu zibonakale ngokupheleleyo!
Ixesha lokuthumela: Oktobha-12-2022
