Isigaba follicular ukuba sexesheni

Isigaba Follicular - oku isigaba sokuqala somjikelo ovarian, esibonakala kukukhula kunye ekukhuleni le follicle.

phase Follicular okanye njengoko ibizwa ngokuba, estrogen, iqala kwimini yokuqala sexesheni kwaye sihlala kude kube mzuzu xa amaqanda hayi ukuvuthwa follicle enye okanye dominants eziliqela. Isiphelo Kweli nqanaba - ovulation.

ubude bayo inokuba nomahluko kakhulu. Usoloko kolibaziseko ngenyanga zenzeka ngenxa nokuvuthwa kade le follicle. Umba ophambili ochaphazela ngethuba lokuqhuba kwale nkqubo lixesha ikuthatha umzimba ukufikelela kwinqanaba ubuninzi estrogen.

Ngokutsho utshintsho ezisebenzayo morphological kwi zamaqanda kumjikelo ngenyanga lungohlulwa lube zigaba zilandelayo:

1) Isigaba Follicular;

2) Ovulatory;

3) luteal;

4) sexesheni.

Loo sigaba somjikelo, nto leyo ekhokelela ovulation kuthiwa follicular. Ngokuqhelekileyo, kuthatha kuphela kwisiqingatha sokuqala umjikelo, kodwa ngamanye amaxesha kuthatha ixesha elide. I-avareji Ixesha Umjikelo - iintsuku 28. Nakuphi na ukutenxa kule nombolo okubangelwa kuphela ngexesha lesigaba follicular.

Isigaba Follicular luphawulwa ngenxa yokwanda ikhula kuyondelelaniswe nokukhululwa estradiol kunye inhibin. Uyazikhomba ezo hormone ukunyuka hayi kuphela kwegazi, kodwa kulwelo follicular. Kwafa iintsuku ezi-2 phambi kokuba sexesheni iqala uphuhliso follicle ukusuka yokuphumla kwalo okanye ifomu ekwakuphila.

Kanye ngeli xesha kwi isizalo uyafa umzimba etyheli, leyo kwasekwa emva kumjikelo odlulileyo. Isiphumo sale nkqubo - kukuhla elibukhali kwi uyondelelwano lwee- estradiol, dlala, kunye inhibin (yokugqibela ezimbini isiXhosa).

Kwiintsuku 4-5 yale isigaba dormancy kuqhubeka ukuba aphume nokuphuhlisa zoboya ovarian ekwakuphila. Follicle-ushukumisa hormone (FSH) iqala aqhubela iseli ayanda, apho umsebenzi kwandisa kakhulu. Oku kuphumela ekomelezeni ukuyilwa androgens estrogen ukuba kuhlelwe iiseli Embi.

Zoboya kwamiswa kweli nqanaba idla ayinayo umaleko ube mnye iiseli follicular ezingqonge kweqanda. Ukongeza, Sisihloko encinane ulwelo follicular apho phakathi kwezi seli. Follicle-Kuyakhuthaza hormone iqala aqhubela inkangeleko inani nakakhulu receptors ukuba receptors LH kunye naleyo. Kwaye kwandisa uvakalelo lwabo luteinizing hormone.

Isigaba follicular luphawulwa kukuba umjikelo imini 6-7, omnye zoboya asakhasayo kuqala ukwanda. Nje yena uya kuthi ziphinde ziphuhliswe zize emva ovulates malunga ngomjikelo ngamnye weentsuku 13-15. Ngokuba lo follicle lubalaseleyo luphawulwa umsebenzi ephezulu mitotic kweeseli follicular, zokwanda eliphezulu hormone follicle-ezinokubakhuthaza emanzini folllikulyarnoy.

zoboya Non-lubalaseleyo kufuneka nje ubenesahlulo eziphezulu androgens kunye estrogen, kwaye ithi ukuba iiseli follicular zehla umsebenzi aromatase. Loo non-lubalaseleyo zoboya umva (atresia). Androgens - ngumba ophambili nangokukhetha atresia.

Isigaba emva kwexesha kwaye ophakathi follicular ukuba sexesheni uphawuleka kukwanda esingakumbi Yindibanisela estradiol kunye inhibin B, nto leyo ekhokelela inhibition ngokuveliswa hormone follicle-zivuse yi ingqondo yebhinqa kwaye ime ukukhula zoboya ezintsha. Ukukhula estradiol nayo kukhokelela ekwandeni secretion of luteinizing hormone kunye nokwanda ubuntununtunu ovarian ku gonadotropins. Ukongeza, isiqulatho eliphezulu estrogen abangela ukukhula endometrial. Olo tshintsho zibizwa ngokuba "kwisigaba ukwanda".