Iyini ngempela izinwele ezibulalayo, zibonakala nini njengezici zobunikazi zesibili, futhi zihluke kanjani izinwele ezivelele?
Kuyini Izinwele Zomzimba?
Izinwele zesikhumba ziyizinwele ezilukhuni, ezide, eziluhlaza, ezitholakala esikhwameni, ebusweni, emagqumeni nasezindaweni zokushicilela. Ukukhula kwezinwele ezibulalayo kuthonywa amahomoni.
Umsuka Wezinwele Zokuphela
Kukhona izinwele zezinwele kuwo wonke umzimba.
Ngaphakathi kwe-follicles kukhona amangqamuzana amancane, imithwalo yegazi, izigulane ezithintekayo futhi, ngokuqinisekile, izinwele. I-follicle iphakathi kwesigaba sesibili sesikhumba : i- dermis . Lona yingxenye ephilayo yezinwele. Izinwele zangaphandle -okungukuthi, izinwele ozibonayo-empeleni zifile.
Izinwele ze-Vellus
Ngaphandle kwezintende zezandla, izinyathelo ezinyaweni kanye nama-tissu omuncu, wonke umzimba womuntu ugcwele izinwele ze-vellus . Izinwele ze-Vellus , ezivame ukubizwa ngokuthi i-peach fuzz, inomzimba omncane, omfushane futhi omfushane. Ngokungafani nezinwele ezibulalayo, ukukhula kwezinwele ze-vellus akuthonywa ama-hormone. Izinwele ezinamahloni kucatshangwa ukuthi zikhonza ngokuyinhloko njengomzimba.
Ukuguqulwa kwezinwele ezivuthiwe
Ngesikhathi sokukhulelwa, amazinga e-hormone akhula enza ukuba izinwele ze-vellus ziphenduke izinwele ezibulalayo ezingxenyeni ezithile zomzimba. Izingxenye ezahlukene zomzimba zinamazinga ahlukene okuzwela kula mahomoni, awaziwa ngokuthi ama- androgens . Ukuthuthukiswa kwezinwele ezibulalayo kubhekwa njengenye yezici zobunikazi zesibili.
I-Androgens yaziwa njenge-hormone yamadoda ngoba abesilisa bakhiqiza futhi basebenzise i-androgens, njenge-testosterone, ngaphezu kwabesifazane. Nakuba la mahomoni okuthiwa "abesilisa" ayenabesifazane-adlala indima encane-ayadingeka ekuthuthukiseni ngokomzimba nangokwenyama.
Izingxenye zomzimba eziphendula kula ma-hormone zibandakanya indawo ye-pubic kanye nama-armpits, okwenzeka kokubili abesilisa nabesifazane.
Amantombazane agcina izinwele ze-vellus eziningi, kuyilapho abesilisa bakha izinwele ezibulalayo ezingxenyeni eziningi zomzimba, kufaka phakathi, kodwa kungagcini ebusweni, esifubeni, emuva, emilenzeni, ezandleni, ezandleni nasezinyaweni.
Izinyathelo Zokukhula Kwezinwele Zokuphela
Ukukhulelwa ngokuvamile kuqala kubafana abaphakathi kweminyaka engu-9 no-15, nasemantombazaneni aphakathi kweminyaka engu-8 no-14. Emadodeni, izinwele ezibulalayo zivela eminyakeni yonke yeminyaka eyishumi neminyaka, nakuba izinwele zibonakala ziguquka.
Esikhathini sokuqala sokuthomba, ukukhula kwezinwele eziphelile kugxila endaweni yezishiyagalolunye (ngokuvamile eqala ngaphansi kwepenisi) kanye nezimpondo. Ezinye izinwele zobuso zivela ngaphambi kwesikhathi, kodwa zigcwaliswa ngesikhathi sokugcina zokukhulelwa, ngokuvamile nge-20s yokuqala. Amantombazane angalindela ukuthuthukisa izinwele ezinde zomlenze kanye nezinwele ezibulalayo endaweni yokushicilela kanye nezikhwama ngesikhathi sezingane.
Ukukhula Kwezinwele Zasekhanda Elidlulile
Ukukhula kwezinwele zesikhashana akukhona ngaso sonke isikhathi kwenzeka njengoba kufanele. I-pituitary gland ifihla ama-hormone aqala ukukhulelwa, kufaka phakathi i-hormone, i-androgens, ne- progesterone e-female. Uma lezi hormone zingabonakali, ukukhulelwa ngeke kwenzeke. (I-hormone ye-Luteinizing yenziwa emgodini we-pituitary futhi igqugquzela ukulandelana kwama-estrogen kusukela ku-ovary kwabesifazane nase-testosterone ukusuka kwamathambo emadodeni.)
Ukwanda Kwezinwele Zasekhanda Elidlulele
Amaphesenti angama-10 abesifazane abhekana nesimo esibizwa ngokuthi i- hirsutism . Ngokuphathelene nokuningi kwe-androgens phakathi kwezinye izici, i-hirsutism ibhekisela ezintweni ukukhula kwabesifazane kunokuba kubonakale okuningi okunjalo kumadoda. Abesifazane abane-hirsutism bangase bathuthukise izinwele zobuso (njengamadevu) kanye nezinwele ezikhulayo emagqabeni abo nasesifundazweni sangasese.
Ukukhula Kwezinwele Zokuqala Kwangasese
Kwezinye izimo, izinwele ezibulalayo ziqala ukukhula ngaphambi kokuvamile. Isizathu esiqondile sokukhulelwa ngaphambi kwesikhathi (ukukhulelwa ngaphambi kwesikhathi) kubesilisa nabesifazane akukwazi ukukhonjwa ngaso sonke isikhathi, kodwa kuhlotshaniswa nokukhathazeka kwe-hormonal nokuvezwa kwamahomoni angaphandle ( estrogens kanye ne-testosterone) ngokusebenzisa into efana namafutha e-topical.
Ukungabikho kokukhula kwezinwele zesikhashana
Kwezinye izimo, izinwele ezibulalayo azikhuli. Izakhi zofuzo zivame ukusola, kodwa futhi kubangelwa isifo sikashukela, isifo sezinso, isifo sofuba kanye nokungajwayelekile emgodini we-thyroid ne-pituitary.
Ukukhuthazwa kokukhula kwezinwele zesikhashana
Kubalulekile kulabo abasebenzisa imithi efana ne-Minoxidil engakhuthaza izinwele ukuba zikwazi ukuthi le mithi ingashukumisa ukukhula kwezinwele ezibulalayo ebusweni, emagqumeni nasezinhlungwini. Ngamanye amazwi, uma imithi ibangele izinwele ezengeziwe ekhanda lakho cishe kuzodingeka uhlabe futhi kaningi.
Kungani Kunezinye Izinwele Zase-Terminal?
Ngokungafani nezinwele ezibulalayo ngaphezulu kwekhanda lakho, isigaba esikhulayo sezinwele ezibulalayo ezihlobene nezici zesondo zobunikazi (anaphase), kufushane, ezinyangeni eziningana kunezinyanga ezimbili kuya kweziyisithupha zezinwele zekhanda. Ngenxa yalesi sizathu izinwele ozinayo emagcekeni akho noma esifundeni sesishicilelo aziqali njengezinwele ekhanda lakho.
Izinwele zesikhumba njengoba sizalwa
Ngokungafani nokuvama kwendoda yesilisa evamile ejwayelekile, izinwele ezibulalayo ezikhula ebusweni, emagqumeni, nasezindaweni zokushicilela ngokuvamile ziyaqhubeka zikhula zibe seziguga. Ngenxa yalesi sizathu, indoda ingase ihlale ihlezi phezu kombhede wayo kodwa ikwazi ukukhulisa intshebe.
Umthombo:
Kasper, uDennis, Anthony Fauci, uStephen Hauser, uDan Longo, noJameson. Izimiso zikaHarrison zeMithi yangaphakathi. I-New York: I-McGraw-Hill Education, 2015. Phrinta.