I-follic hair isakhiwo esifana nesitokisi esiqukethe amaseli kanye nezicubu ezixhumeneyo futhi zizungeze impande yezinwele. Ikhona ngaphakathi kwidermisi kanye ne- epidermis , izingxenye ezimbili eziphezulu zesikhumba. Ukuze ubone okuwusizo, cabanga ngezinwele zezinwele njenge-vase nezinwele njenge-stem yembali.
Ukwakhiwa kwezinwele zezinwele kulula futhi kuqondile, kodwa imisebenzi yayo kanye nomjikelezo wayo wokukhula kunzima kakhulu.
Noma yikuphi ukuguqulwa okuphawulekayo kumjikelezo ojwayelekile wokukhula wezinwele zezinwele kungaholela esimweni sezinwele ezifana ne- alopecia areata noma i- telogen effluvium .
Ukwakhiwa Kwezinwele Zezinwele
Izinwele zezinwele zakhiwa izingxenye eziningi ezihlukene, kodwa lezi zakhi ezine eziyinhloko.
I-Papilla
I-papilla yakhiwa izicubu ezixhumene nemithambo yegazi ezondla izinwele ezikhulayo. Kukhona phansi kakhulu kobuciko bezinwele.
I-Germinal Matrix
I-matrix yegciwane, ebizwa nangokuthi "i-matrix," yilapho amaseli akhiqiza izinwele ezintsha njengoba izinwele zifa futhi ziphuma. Iphinde itholakala esifundeni esingaphansi se-follicle yezinwele.
Ibhulogi
I-bulb isakhiwo esine-bulb, esakhiwe phansi engxenyeni engezansi ye-follicle yezinwele "ukugcina izinto" ezizungezile i-papilla kanye nesisu segciwane futhi sondliwa yimithwalo yegazi. Lona yingxenye ephilayo yezinwele. Eqinisweni, izinwele ezibonakala ngaphezu kwesikhumba empeleni zifile.
I-bulb inezinhlobo eziningana zama-stem cells ezihlukanisa amahora angu-23 kuya kwangu-72, ngokushesha kunanoma yimaphi amanye amaseli emzimbeni. I-bulb iqukethe nama-hormone athinta izinwele ukukhula nokuhlelwa ngezigaba ezahlukene zokuphila, njengesikhathi sokukhulelwa nangesikhathi sokukhulelwa.
Ibhulogi
Indawo enobuningi isendaweni ephakathi (eyaziwa nangokuthi isthmus) ye-follicle yezinwele.
Iqukethe amangqamuzana amancane ahlukanisa futhi avuselele kuphela izinwele ezinwele ezintsha kuphela kodwa izilonda ezisabekayo kanye ne-epidermis, futhi.
I-bulge iphinde inikeze iphuzu lokufakela i-arrector yesibili-iqembu elincanyana lezincubu zomzimba. Ukwehlukaniswa kwalezi zinhlanzi yilokho obangela izinwele ukuba zime ekupheleni uma uthola ama-goosebumps.
Umjikelezo Wezinwele Zokukhula
Izinga lapho izinwele zikhula zihluka kusuka komuntu kuya komuntu, kodwa izinga lokukhula elivamile lilinganiselwa ku-inch isigamu ngenyanga noma amayintshi ayisithupha ngonyaka. Umjikelezo wokukhula kwezinwele uhlukaniswa ngezigaba ezintathu: i-anagen, i-catagen, ne-telogen. Nazi ezinye imininingwane mayelana nesigaba ngasinye.
I-Anagen
Lesi yisigaba sokukhula. I- anagen isigaba se-folalle yama-scalp ejwayelekile ehlala cishe eminyakeni emibili kuya kweyisithupha, kanti izinwele zezinwele zihlala cishe izinsuku ezingu-70 esigabeni se-anagen.
Izinwele ze-anagen nazo ziyahlukahluka ngobukhulu, kusukela ezinwele ezinqamule ezide, ezinobunzima bezinwele ezimhlophe ezikhanyayo. Amahomoni akhula ngesikhathi sokukhulelwa aphendule izinwele ze-vellus zibe izinwele ezibulalayo.
Ikati
Lesi yisigaba sokuvuselela. Phakathi namaviki ambalwa, izinga lokukhula kwezinwele liyehla futhi izinwele zezinwele ziyancipha. Isigaba senkathi sithatha amasonto amabili kuya kwamathathu.
I-Telogen
Lesi yisigaba sokuphumula, esihlala cishe izinyanga ezintathu.
Ngemuva kwezinyanga ezimbalwa, izinwele ziyeka ukukhula nokutholakala kwezinhlanzi ezinwele. Izinwele ezintsha ziqala ukukhula futhi ziqhube izinwele zakudala, ezifile.
Ngesikhathi sokucindezeleka, izinwele eziningi zingena esigabeni se telogen futhi ziqala ukuphuma. Abantu badonsa noma yikuphi izinwele ezingu-50 kuya kwezingu-100 ngosuku, kodwa ukucindezeleka kungabangela inani elibonakalayo lokulahlekelwa izinwele.
> Imithombo
> I-American Academy of Dermatology. Indlela Izinwele Ezikhula Ngayo.
> Breitkopf T, Leung G, Yu M, Wang E, McElwee KJ. Isayensi eyisisekelo yezinyosi zezinwele: yiziphi izindlela zokwenza izinwele zezinwele eziphazamisekile? I-Dermatol Clin . 2013 Jan; 31 (1): 1-19.
> Ohyama M. Izinwele zezinwele: isakhiwo esithakazelisayo sezingqamuzana ze-epithelial stem. J Dermatol Sci . 2007 Meyi; 46 (2): 81-9.