Izinto zesikhumba
Umxholo
Dlala ividiyo yezempilo: //medlineplus.gov/ency/videos/mov/200098_eng.mp4Yintoni le? Dlala ividiyo yezempilo ngenkcazo yomsindo: //medlineplus.gov/ency/videos/mov/200098_eng_ad.mp4Ushwankathelo
Umntu ophakathi ophakathi uneepawundi ezi-6 zolusu ezigubungela i-18 yeenyawo zenyawo, esenza ulusu elona lungu likhulu lomzimba. Makhe sijonge indlela ulusu oluhlanganiswe ngayo. Ulusu lunemiqolo emithathu. Uluhlu oluphezulu yi-epidermis. Ikhusela ezinye iindawo ezivela ngaphandle. Iqulethe iiseli ezenza ikeratin, ethintela ukungenwa kwamanzi ize yomeleze ulusu. I-epidermis nayo ineeseli kunye ne-melanin, i-pigment emnyama enika ulusu umbala wayo. Ezinye iiseli ezikwi-epidermis zisivumela ukuba sizive sithinteka kwaye sinikeze ukhuseleko ngokuchasene nabahlaseli abanjengeebhaktheriya kunye nezinye iintsholongwane.
Uluhlu olusezantsi yihypodermis. Iqukethe iiseli ezinamafutha, okanye izicubu ze-adipose, ezifaka umzimba kunye nokunceda ukugcina ubushushu. Phakathi kwe-epidermis kunye ne-hypodermis yi-dermis. Iqulethe iiseli ezinika isikhumba ukomelela, ukuxhasa, kunye nokuguquguquka Njengoko sikhula, iiseli ezikwi-dermis ziphelelwa ngamandla kunye nokuguquguquka, okwenza ulusu luphulukane nenkangeleko yolutsha.
Idermis inee-receptors zemvakalelo ezivumela umzimba ukuba ufumane ukukhuthazeka ngaphandle kwaye uzive uxinzelelo, iintlungu, kunye neqondo lobushushu.Intanethi yemithambo yegazi ibonelela ngolusu ngezakha-mzimba, kwaye isuse iimveliso zenkunkuma.
Amadlala aSebaceous avelisa ioyile egcina ulusu lungomi. I-oyile evela kumadlala aqaqambileyo ayanceda ukuthambisa iinwele kunye nokubulala ibacteria kwimingxunya yolusu.
La madlala agubungela wonke umzimba, ngaphandle kweentende zezandla kunye neenyawo.
- Iimeko zolusu
Ingcebiso Yethu
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