Rapid yobereka: zimayambitsa ndi kupewa

Pali yobereka mofulumira chifukwa kuphwanya contractile ntchito ya khoma chiberekero. Poyamba akhoza protracted, ndi kutsegula osauka a chiberekero ndi zovuta ulaliki wa mwana wosabadwayo. Koma ndiye amayamba patsogolo mofulumira mwanayo kudzera m'njira kubadwa. Nthawi okwana yobereka kungakhale muyezo, koma ndi kuchepetsa lakuthwa kusenza-pansi nthawi. Koma chisangalalo chifukwa pang'ono: iwo alibe mavuto. Nthawi zambiri chimandiswa, magazi, ndipo ambiri Chofunika - ngozi mwana Iye mukhoza kuvulala kwambiri, zimenezi akayakaya kapena kuyambitsa chilema. Ntchito - ndi contractions rhythmic la chiberekero, masekondi angapo ndipo mobwerezabwereza fupipafupi chosatha. Choncho, nkhondo ayenera inakonzedwa ndi kuchepetsa pang'onopang'ono wa imeneyi pakati pa iwo ndi elongation.

masiteji

Kubadwa Mulimonsemo kugawidwa m'mbali zitatu, amene bwino anasiyanitsidwa ndi mfundo za view. Woyamba wa ikuyamba ndi contractions zonse, pa nthawi iyi anawulula khomo pachibelekeropo chifukwa kuchepetsa myometrium lapansi. Sitepe anamaliza ndi Kuwulura wathunthu, walola gawo kupereka wa mwana wosabadwayo pochitika kudzera pa khomo pachibelekeropo. Nthawiyi ndi motalikitsa, amene wolungama kwambiri, chifukwa angathe kuchepetsa vuto lobadwa njira ndi kuthamanga kwambiri mwanayo. Gawo lachiwiri - ndi athamangitsidwe wa mwana wosabadwayo, zikuyamba pambuyo Kuwulura wodzala khomo pachibelekeropo komanso limatha ndi kubadwa kwa mwanayo. Panthawi imeneyi, kudula uterine khoma, crumb ikuyenda mu ngalande kubadwa ndi amayi ayenera kuyesetsa kuthandiza mwanayo abadwe. Nthawiyi chimakhala cha Mphindi 30 maola 2. Mbali yachitatu ndi lalifupi, osapitirira theka la ola. Pali kulekana kwa nsengwa ndi kubadwa kwake, komanso kuchepetsa kwambiri chiberekero.

zifukwa

ntchito inapita nthawi ntchito ya ubongo ndi mahomoni. inawo ikuchitika tsiku lokonzekera kubadwa ngalande. Mwana wosabadwa anali wokhoza kuti adutse iwo, mchikakamizo wa oxytocin contractions kuyamba. Ndipo mantha dongosolo akuyamba mapangidwe unsembe wapadera, umalimbana akupanga thupi la mayi a kubadwa kwa mwana. Ngati inu akuphwanya zimachitika izi yeniyeni amapezeka kudwala. Quick yobereka - ndi kuphwanya hyperdynamic contractile luso la chiberekero, ndiko kuti, umayamba kuchepa kwambiri. Makhalidwe waukulu myometrium ndi kwambiri yogwira, intrauterine kuthamanga kuwonjezeka, contractions oposa asanu kwa mphindi khumi. Imeneyi, zoopsa kwambiri ndi chitukuko cha khunyu, tingayambe chotupa uterine. Komanso, yobereka mofulumira yopweteka kwambiri kwa mwana ndi mayi, ngati iwo ali ichi si okonzeka.

kupewa

Importance ali kudziwika pa zinthu mimba zinanso. Ngati mkazi ali pangozi, makamaka ngati kale woterowu ntchito, ndi bwino kugona mu chipatala pamaso pa tsiku kuyembekezera. Pakachitika dokotala akhoza mankhwala mankhwala kuti kusintha placental magazi, ndiponso mankhwala amene relaxes uterine musculature.