I-oocyte ikhula njani kwaye nini na emva kokuya esikhathini, kuyimfuneko yokuchumisa?
Okokuqala, kufuneka kuthiwa umjikelezo wesisimo ngokwawo kubasetyhini ulawulwa ngamahomoni amaninzi: i-gonadotropin, i-hormone evuselela i-hormone (FSH), i-luteinizing, ne-estrogen kunye ne-progesterone.
Ngoko, ngexesha lesigaba sokuqala somjikelezo we-hypothalamus, i-gonadotropin iveliswa, leyo leyo ikhuthaza ukukhululwa kwe-Pituitary gland ye-FSH. Iqhutyelwa ngumjikelezo wegazi jikelele, ifinyelela kwinkqubo yokuzala kwaye ikhuthaza ukuqala kokuvuthwa kweqanda elitsha kuma-ovari. Kule meko, iifolli ezingama-20 zikhula ngomjikelezo omnye, kodwa ezininzi zazo (1-3) zikhula ngokukhawuleza kunabanye. Emva koko bakhulisa iqanda elivuthiweyo.
Emva koko kuza isigaba sesi-2 - i-ovulatory. Kukho ukukhululwa kwe-hormone ye-luteinizing, ephazamisa ukugqithwa kwodonga lwesigqabi kunye nokuphuma kwamacembe eqanda avuthiweyo kwisigxina esiswini.
Isigaba sesithathu, i-luteal, idlulela kwi-ovulation kuze kube yinyanga elandelayo. Ngeli xesha, i-follicle eshiywe yiqanda iyaba ngumzimba ophuzi. Le gland isenza i-estrogen kunye neprogesterone, egalela ekuqiniseni i-myometrium ye-uterine, elungiselela ukuqala kokukhulelwa. Ukuba lo mva awuqali, umzimba ophuzi uyancipha, okhokelela ekunciphiseni kwimiqulu ye-hormone yesondo kwigazi. I-Endometrium iqala ukuvelisa i-prostaglandin, - izinto ezibangele ukutshabalalisa iimbumba ezinobumba kwaye zikhuphe ukunyakaza kwezivumelwano zomxube we-muscular yale nxalenye.
Xa iqela livuthiwe emva kweenyanga?
Emva kokuvavanya inkqubo yokuvuthwa kweqanda, eqala emva nje kwexesha lokuya esikhathini,
Njengomthetho, inkqubo ngokwayo iqala ngokoqobo iintsuku ezingama-3-5 emva komhla wokugqibela we-excreta. Oku kwenzeka kwinqanaba lokuqala, eliqhelekileyo, lixesha elifanayo.
Abasetyhini abaninzi babuza ugqirha indlela yokufumana xa iqanda livuthwa. Kufuneka kuthethwe ukuba le nkqubo ayikho inzuzo ebonakalayo ekubaleni "iintsuku ezikhuselekileyo". Ukuchumisa, ingongoma ebalulekileyo kukuba i-ovulation ivela. Oku kungenziwa ngokunyusa izinga lokushisa lokusasa phakathi kwimijikelezo okanye ngokwenza uvavanyo lwe-ovulation.