Amaqanda adlala indima ebalulekile ekuzaleni kowesifazane, ngoba ngaphandle kwabo, ukuzala bekungeke kwenzeke. Ama-ovari anesibopho sokukhiqiza amaqanda kusukela ebusheni, lapho kuqala ukuya esikhathini. Kusuka lapho, cishe zonke izinsuku ezingama-28 kukhishwa iqanda ukuthi kusukela kulowo mzuzu kuqhubeke, uhlala evundile amahora angama-24 alandelayo, ngenkathi esesemathinini.
Uma iqanda livundiswa yisidoda ngenkathi lisesikhathini salo esivundile, lokhu iba yi-zygote, ngaleyo ndlela iholele ekukhulelweni. Okungukuthi, ama-ovules angumsuka wokuphila, amaseli akhiqizwa uhlelo lokuzala lwabesifazane ukuze kuyo yonke iminyaka yokuzala yabesifazane (njengakwezinye izilwane ezincelisayo), kungenzeka ukuthi ukukhulelwa futhi ngaleyo ndlela kwaba ukuqala kwempilo entsha.
Anjani amaqanda?
Isithombe: National Geographic
Njengamanye amaseli amaningi emzimbeni womuntu, ama-ovules ayindilinga ngokuma futhi angamaseli amakhulu kakhulu. Iqanda limbozwe ulwelwesi olubili olubaluleke kakhulu, olokuqala, okuyilona olumboza iqanda uqobo lwalo, ulwelwesi okuthiwa yi-yolk. Le ulwelwesi luqukethe ama-glycoprotein, anesibopho sokujoyina amaseli ezocansi. Ngokulandelayo, imbozwe ngolunye ulwelwesi, olwakhiwe kulokhu ngamaseli alandelanayo.
Lezi zingqimba ezimboza iqanda uqobo zibalulekile ekukhuleni kokukhulelwa. Ngakolunye uhlangothi, zivikela ingaphakathi lesibeletho, eliqukethe i-nucleus, eligcwele imininingwane yezofuzo zowesifazane. Ama-ovules noma ama-oocyte, ukukhula emzimbeni wesifazane kusuka esigabeni senganeNgakho-ke, ngesikhathi sokuzalwa, owesifazane usenama-oocyte azungeze ama-300.000 emzimbeni wakhe.
Kuzo zonke, phakathi kuka-300 no-400 kuphela oyoqeda ukwakha njengeqanda kuso sonke isigaba sokuzala sowesifazane, nge-ovulation njalo ngenyanga. Abanye bazoxoshwa ngokusebenzisa ama-ovulation ahlukahlukene azokwenzeka ngokuhamba kwesikhathi, kusukela esikhathini sokuqala kuze kube sekufikeni kokunqamuka kokuya esikhathini, lapho owesifazane engasavundisi.
Izinkinga zokuzala
Kunezinkinga ezahlukahlukene zamaqanda ezivame ukubangelwa ukungalingani kwamahomoni, njenge-polycystic ovary syndrome. Izinga lamaqanda nalo liyancipha ngokuya kweminyaka. Yize kungenzeka ukuthi iqanda livundiswe lapho selikhulile, amathuba okuba nezinkinga zokukhulelwa anda kakhulu.
Ukuze, ngemuva kweminyaka yobudala engama-41, ithuba lokukhulelwa liphansi. Ngokwengeziwe, ubungozi bokukhulelwa kwesisu noma ukukhubazeka kwe-chromosomal embuseni kukhuphukela kumaphesenti angama-80. Ngakho-ke, yize kungenzeka ukuthi ukhulelwe ngokwejwayelekile lapho usuvuthiwe, iqiniso ukuthi ingozi inkulu futhi kubalulekile ukuthi ukulandela ukwelashwa kudinge kakhulu, ngoba kungathathwa njengokukhulelwa okuyingozi kakhulu.
Nakekela ukuzala kwakho
Abantu ngokujwayelekile nabesifazane ikakhulukazi, bavame ukucabanga ukuthi impilo yinde nokuthi kunesikhathi sakho konke. Ukuphela kwentsha akukaze kubonwe eduze, futhi lokhu kwesinye isikhathi kungaxaka kakhulu izinhlelo zesikhathi esizayo. Ukuba nengane kuyinto okufanele kucatshangwe ngayo, lokho okufanele kwenziwe kusuka olwazini futhi umthwalo oza nokuletha impilo entsha kulo mhlaba.
Lokhu kuyasho izici ezibaluleke njengezempilo yengane yesikhathi esizayo kanye nempilo yowesifazane uqobo. Yize namuhla impilo yabantu ingafani njengoba yayinjalo emashumini eminyaka adlule futhi kunezindlela zokulawula ukukhulelwa kusukela ngomzuzu wokuqala, umzimba womuntu uqobo unemithetho yawo. Intuthuko yesayensi futhi kunezindlela eziningi zokuthola ukukhulelwa ezimweni ezingenakwenzeka, kepha ngaphambi kokufika kulokhu, Nakekela ukuzala kwakho impilo yakho yonke.