Matanho ekuenda kumwedzi

Kuenda kumwedzi inguva yenguva inodzokorora paavhareji mazuva makumi maviri nemasere ega ega. Nokudaro, muviri womukadzi unogadzirira kubereka. Kuenda kumwedzi kunosanganisira maitiro matatu: endocrine cycle, ovulatory (ovarian) uye endometrial (uterine) cycle. Iyo hypothalamus nepituitary gland inotumira zviratidzo kumaovari uye chibereko. Mabasa ese anopindirana.

1. Ndeapi matanho ekuenda kumwedzi?

• Hormonal cycle

Basa reOvarian rinoenderana nemahomoni maviri: luteinizing hormone uye follitropin. Aya mahomoni anoburitswa nepituitary gland. Asi kuitira kuti pituitary gland ibudise lutein nefollitropin, inofanira kurapwa neGnRH (hormone inobudiswa ne hypothalamus).

Kuenda kumwedzi kunokonzera kuwedzera kwehuwandu hwe follicle-stimulating hormone. Nokudaro, mazai anokurudzirwa kuumba uye kukura Graaff follicle. Panogona kunge paine mabhuru akati wandei. Apa ndipo panokura zai. Estrogens inovanzwa nemadziro efollicles yakabudiswa.

Estrogens mahormone anoona humwe hunhu hwepabonde hwemukadzi (chibereko, fallopian tubes, yekunze genitalia) uye kugona kwake kuita orgasm. Nhamba ye follitropin inokwira. Nekuda kweizvi, rimwe remabhubhu rinotanga kutonga mamwe. Iyi follicle inovanza yakawanda uye yakawanda estrogen, iyo inoderedza follitropin mazinga. Apa ndipo panopinda mhinduro. Follitropin ndiyo inokonzera kugadzirwa kwekutanga kwefollicles. Uyezve, lutotropin yechikamu chekuderera kwavo, i.e. ovulation.

Kutenda kune follitropin, zai rinoburitswa kubva kuGraaff follicle. Izvo zvakasara zvefollicle pasi pekuita kwehomoni zvinoshanduka kuita corpus luteum, iyo inobereka estrogen uye progesterone. Kana fertition ikasaitika, corpus luteum inofa. Estrogen uye progesterone haisisiri kugadzirwa. Iyo pituitary gland inogadzirira kutenderera kunotevera. Saka anotangazve kubudisa follitropin.

• ovarian cycle

Musikana mumwe nomumwe mushure mokuberekwa ane nhamba yakati yemazai, iyo inochengeterwa kwake kweupenyu hwose. Mazai akakomberedzwa ne primordial follicles. Kune anenge mazana mana emafollicles akadaro mumaovari. Follicle imwe neimwe ine zai rimwe chete. Iyo pituitary gland inotanga kuburitsa follitropin. Izvi ndizvo zvinokurudzira kuti follicles itange kukura. Mafuru anozvimba kana akazara nemvura, ogadzira mhango yebubble.

Chikamu chemasero mukati me follicle chiri mu appendage yakatarisana ne lumen ye follicle. Mamwe masero anoenda kunze uye oita mutsara wegranular. Follicle imwe chete inogadzirwa zvakakwana kuti irarame. Vamwe vari kufa. Madziro efollicle yakagadzirwa anogadzira maestrogens anokurudzira pituitary gland. Iyo pituitary gland inogadzira luteinizing hormone. Kutenda kune iyi hormone, ovulation inogoneka, ndiko kuti, kusunungurwa kwezai.

Kana ovulation ikaitika uye kuti inotora nguva yakareba sei kuti ivhuvhute ndiyo pfungwa huru paunenge uchishandisa nzira dzekudzivirira kuzvara. Izvi zvinoda kuti munhu anyatsonzwisisa muviri wake. Dzimwe nguva zvinoitika kumukadzi anovulatory cycle. Izvo zvakasara zvefollicle pasi pechiito che luteinizing hormone inoshanduka kuita corpus luteum. Kana urume hukakundikana, muviri unoshanduka kubva kune yero kuenda kuchena uye unofa.

Kuenda kumwedzi (kuenda kumwedzi) ndiko kutanga cycle phase. Zvinotora anenge mazuva mashanu. Muchikamu chechipiri, panguva ye ovarian cycle, follicle inokura. Iri izuva 5-6 rekutenderera. Ichi chikamu chinonzi follicular phase. Chikamu chekupedzisira (luteal phase) chinoenderera kubva pakuzara kusvika pakubudazve. Inowira pamazuva 14-15. Zuva rekutanga rekubuda ropa ndirowo zuva rekutanga rekutenderera. Ukuwo, zuva rekupedzisira rekutenderera izuva risati rabudazve.

• uterine cycle

Rudzi rwechibereko runochinja kune imwe nhanho panguva yekutenderera. Pasi pesimba reestrogens, matishu ayo anove akakora uye akakura. Kana yasangana neprogesterone pachibereko, mucosa inotanga kuburitsa mvura yakakosha iyo "embryo" inodya pairi. Kana kubereka kusingawaniki, mucosa inotanga kubuda.

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