Vakadzi vanowanzowana izwi rokuti "follicular phase" mumabhuku ekurapa uye vanobvunza kuti rinorevei.
Chii chinonzi follicular phase?
Iri ndiro zita rechikamu chekutanga chekuenda kumwedzi pamberi pokutanga kwekuvhura. Iyo yose yekuenda kumwedzi yakakamurwa muzvikamu zvakasiyana:
- the follicular phase;
- ovulatory phase;
- luteal phase .
Icho chinonzi follicular chinotanga nezuva rokutanga rekuenda kumwedzi, uye rinopera nekunyuka. Chikamu chechirwere chinopindirana nekusunungurwa kweoocyte kubva muhupenzi, uye mushure mokunge inotanga chikamu chekateal.
Inguva yakareba sei follicular chigarire?
The follicular phase inobva pa7 (pfupi) kusvika kumazuva makumi maviri nemaviri (kureba), nguva yaro yehuwandu izuva 14. Munguva iyi, endometrium inorambwa uye nguva yekuenda kumwedzi inotanga. Zvadaro, pasi pesimba re follicle-stimulating hormone (FSH) yechirwere chepituitary, kukura kwepuropiyo kunotanga muvharo.
Mune follicle inokura, isradiol inobudiswa, pasi pesimba rekuti chikamu chekupararira kwe endometrium mumubereki chinotanga. Nekuwedzera kwemajeri e-estradiol mu follicle, inhibin B inosunungurwa kusunungura huwandu hweFSH nechiyero chikuru chestradiol pakutanga kwekuvhura.
Mumazuva mashanu okutanga echikamu, maverengi follicles anokura, mune zvikamu zvakasiyana zvemasero zvakakomberedza oocyte uye follicular fluid inooneka. Pazuva re5th-7 re follicular phase, imwe ye follicles inokunda, iyo inowedzera vamwe mukukura, uye mukati maro kuti yakawanda kwazvo ye-estradiol uyewo inhibin B inogadzirwa.Zvino zvisiri izvo zvinotanga nechokutanga zvinoshandiswa mberi nekugadzirisa uye nzvimbo yavo inowedzera. Kubva panguva ino uye kusati kwasvika, kuwanda kwemapurumoni uye huwandu hwemhomoni inowedzera mukati maro, iyo inokonzera kukanganisa pamusana pituitary. Nokudaro, uwandu hweFSH hunoderera, uye izvi zvinodzivirira kukura nekutsvaga kwemamwe follicles.
Maitiro e follicular phase pa endometrium
Iko kuchinja kwemazinga e estrogen mu follicles, uye kuwedzera kwezvakabuda muropa, kune chirevo chekuita kwekukura kwe endometrium muchibereko. Nechitsiko cheserogen chakaderera, inonzi dequamation (kumwedzi kwekubuda ropa) inotanga. Asi, nekuwedzera kwehuwandu hwavo, ropa rinomira uye chigadziriro chinotangazve chinotanga (panguva imwe chete nekukura kwe follicles) uye kupararira (kukura) kweropometrium muchibereko (kuwirirana nekukura kwechirevo chinowedzera ). Muchikamu chekudzivirira, nenguva iyo zamai inobva mumapurisa, endometrium yemubereki inenge yakagadzirira kuvhara mazai anogadzirwa kuUterine cavity.