Amayi nthawi zambiri amapeza mawu akuti "follicular phase" mu mabuku a zachipatala ndikufunsa chomwe chikutanthauza.
Kodi follicular ndi chiyani?
Limeneli ndilo gawo loyamba la kusamba kusanayambe. Kutenga nthawi yonse kumagawidwa m'magulu angapo:
- zojambulazo;
- gawo la ovulatory;
- luteal gawo .
The follicular gawo amayamba ndi tsiku loyamba la kusamba, ndipo amatha ndi ovulation. Gawo la ovulatory limaphatikizapo kutulutsidwa kwa oocyte kuchokera ku follicle, ndipo itatha kuyamba luteal phase.
Kodi follicular isatha nthawi yayitali bwanji?
The follicular gawo amatha 7 (wamfupi) masiku 22 (yaitali), nthawi yake yaitali ndi masiku 14. Pa gawoli, endometriamu imakanidwa ndipo nthawi ya kusamba ikuyamba. Kenako, pogwiritsa ntchito hormone yochititsa chidwi (FSH) ya chithokomiro cha pituitary, kukula kwa follicle kumayamba mu ovary.
Mu follicle yokhwima, estradiol imapangidwa, mothandizidwa ndi momwe chiwerengero cha kupitirira kwa endometrium mu chiberekero chimayamba. Ndi kuwonjezeka kwa majekitilo mu ma follicle, inhibin B imamasulidwa kutulutsa msinkhu wa FSH ndi chiwerengero chachikulu cha estradiol pa chiyambi cha ovulation.
M'masiku asanu oyambirira a gawolo, follicles angapo amakula, momwe zingapo maselo ozungulira ma oocyte ndi follicular madzi akuwonekera. Pa tsiku lachisanu ndichisanu ndi chiwiri la follicular gawo, imodzi mwa ma follicles imakhala yaikulu, imapangitsa ena kuti akule, ndipo m'kati mwake, kuchuluka kwa estradiol komanso inhibin B kumapangidwira. Mapuloteni omwe sali oyamba omwe amayamba ndi chitukukochi, amawongolera. Kuchokera nthawi ino komanso isanayambe, kuchuluka kwa follicular madzi ndi kuchuluka kwake kwa mahomoni omwe ali mmenemo, kumakhala ndi zotsatira zolepheretsa kupweteka. Choncho, mlingo wa FSH umachepa, ndipo izi zimalepheretsa kukula ndi kusasitsa kwa mitundu ina.
Mphamvu ya follicular gawo pa endometrium
Kusintha kwa mlingo wa estrogens mu follicles, ndi kuwonjezeka kwa zomwe zili m'magazi, kumakhala ndi zotsatira zowonjezera kukula kwa endometrium mu chiberekero. Ndi zotsika kwambiri za estrojeni, gawo loyambira (kumaliseche) kumayamba. Koma, ndi kuwonjezeka kwa zomwe zilipo, magazi amasiya ndipo nthawi yatsopano imayambira (panthawi imodzimodzimodzi ndi kukula kwa follicles) ndi kuchulukitsa (kukula) kwa endometrium mu chiberekero (kuphatikizapo kukula kwa chipolopolo chachikulu ). Mu gawo lopweteka, nthawi yomwe dzira limasiya kupyolera, chiberekero cha chiberekero chili wokonzeka kulumikiza dzira la umuna ku chiberekero cha uterine.