Muchibereko ovum

Mushure dzisingaoneki anosvika fallopian sepombi, izvozvo vanosangana pamwechete zai, izvozvo zvinoparadza puroteni jasi uye midzi mukati. Saka muchangosangana zvaitika, inova kutanga nzira kukura embryo. Mushure kwemapazi, dzemadzibaba uye rwaamai zvinhu vakaumba zai - mwana asati aberekwa. Ovum akapfuura padanho kukura, inozivikanwa quantitative uye Qualitative kuchinja. Asi kuti mberi kukura ovum zvakakwanisika, anofanira kuti inotonhorera svikiro, umo pamusoro kwemwedzi mipfumbamwe yakatevera zvichabviswa kugamuchirwa muviri. svikiro akadaro anova dumbu.

Nokudaro, zai iri fallopian sepombi kunotangira zvakananga kupinda dumbu. Izvi kunoitika nokuda pamberi nemaziso villi mukati fallopian sepombi, izvo zvinosimudzira ovum. Kana ari fallopian sepombi vari pathologies (adhesions, Bends), muchibereko ari ovum iri zvikuru kunzwisisa, nokuti nzira kupinda dumbu riri matambudziko. Panyaya iyi, kuti zai anogona kunonoka muna fallopian sepombi uye zvakabatanidzwa ikoko. Fani iyi anonzi ectopic (Tubhari) pamuviri uye kunoda kurapwa kupindira.

Kazhinji, kana chakaipa nemamiriro fallopian sepombi zai mukati dumbu anowira mukati memazuva mana. Panguva ino, zviri Mórula pachikuva, asi kana anopinda dumbu - iri blastocisto rwakazara. Danho iri kunoratidzwa pakuti zai vagadzirira kuchinja itsva. Blastomeres dzinotanga kuumbika embryoblast - chikamu iyo acharamba kukudziridza embryo, uye chikamu chechipiri kwamakamuri - ari trophoblast - yadzo zvinoumba zvokudya pasuru kuti mazai (kupfuura zvibereko chikamu trophoblast vakazova placenta).

Panguva iyi muchibereko pamusoro ovum iri ichangotanga. Nokupesvedzera hormone kuchinja nayo uye anogadzira dumbu. Mushure anobuda follicle, kuti corpus luteum mbeu aumbwa, muchisunungura zvikurukuru progesterone, uye kuti muduku - inonzi estrogen. It progesterone anonongedzera muchibereko chemusikana mucous Kamudzira kudiwa kugadzirira mubhedha wake. Kuchinja rokutanga dumbu pamusoro endometrial yepamusoro - kunonzi panguva pamuviri decidua. Ndoupi musiyano pakati endometrium itsva? The chikuru chepfungwa endometrium - kuunganidza panguva yayo mukobvu bioactive yeimwe chekugutsa embryo. Izvi glycogen, mucopolysaccharides, lipids, munyu uye kuronda okunze, makemikari, immunoglobulins - vose kunokosha muchibereko ari ovum yakaramba kukura izere azvarwa. Mune zvimwe zviitiko, kana paine kuremara ari endometrium wayo mashandiro, mukadzi kwenguva refu haagoni kubata pamuviri, uye dzimwe nguva vanova mbereko.

Chaiye endometrium ovum muchibereko rinovapo anenge maviri mazuva. Panguva ino, munzvimbo kuda (nidation) dilates midziyo ropa, thickened endometrium. kuchinja izvi anoratidza kuti dumbu akagadzirira kugamuchira blastocisto. Kana anyatsofukidzwa ari ovum kupinda pakukora ari endometrium sokuti wakafukidza muchibereko chemusikana villi. Dzimwe nguva kuda ichi angaperekedzwa zviduku ropa, iro rinogona kutorwa pakutanga pamwedzi kunonoka. Zvisinei, uwandu ropa riri duku zvikuru - kuti madonhwe mashomanana kana chiduku gwapa, ipapo ichi "ropa" anomiswa. Muchibereko of ovum, zviratidzo zvacho hazvisi mukadzi perceptibility, nzira bedzi inoita pacharo akanzwa, sezvo zvinoitika pakati ichitanga, pashure ovulation, asi vachiri kure kutanga varikutsika. Kana vakadzi vanotarisira zvinogara dzavo uye kuziva nguva ovulation, kwakondiko vanofanira tariro pamuviri. Chete vashoma vakadzi muchibereko ari ovum, kunzwa chero nzira kuonekwa munguva muchibereko. Dzimwe nguva kunzwa tingling, kuda kurutsa, kunzwa waziya. Zvisinei, havana anokonzerwa muchibereko pacharo, uye kuchinja kwemakemikari omuviri mumuviri.