Ke yolk sac mea: He aha ka mea? Launch a me ka waiwai o ka yolk sac i hāpai keiki

hapai wahine e he nui i hoihoi i ka ninau e pili ana i ka oihana i hana 'ia e ka yolk sac, i ia mea a me ka wā malaila mea. Ma hope o nā mea a pau, ia mea i ike ole ia i keia mea nui loa ka hehee ai i loko o ka hōʻoia 'o ka maʻamau kūpono' ana o ke embryo.

Yolk sac - He aha ka mea?

Iloko o ka ultrasound hookolokolo ana i loko o nā kahua o ka hoʻonaʻauao kakahiaka o ka hāpai keiki i ke kauka uku noonoo ana i ka nui a me ka hooulu ana o kēia mau 'ole. Yolk sac - he kūikawā extraembryonic hui, kēia, i hanaʻia i loko o nā kahua o ka hoʻonaʻauao kakahiaka o ka hāpai keiki, a ma na mahina mua o ka lawelaweʻana loa nui i hana '. Ua Ua Aia i loko o ka umbilical'āina, a me ka mua ua pili loa ua hoʻopili me ka fetal liʻiliʻi. Hana o ke kahua o ka mesoderm halepaahao, a mai ke komolima ÿano me ka lahilahi pā pōhaku.

O ka papa kuhikuhi hana o ka yolk sac

I ka mea, hoʻonaʻauao mea'āina nui. Ma nā kahua o ka hoʻonaʻauao loiloi mua o? Acaeoey o ka embryo a me ka yolk sac i pili loa ua hoʻopili. Mua, ua 'ole o ke kumu o ka mahuaola. Ka lua, ka yolk sac ua 'Imi' ole i loko o ka hanu kaʻina.

About ka umikumamawalu lā o ka hāpai keiki i loko o ka yolk sac mua hoʻomaka e lilo ulaula koko keena. Kēia 'ole kekahi e hōʻoiaʻiʻo i ke kahua o ka capillary mua, mai i loko o ka wā e hiki mai, e e ulu fetal circulatory kahua.

Ma ka 28th lā o ka mua germ aeee i hana i loko o nā paia o ka eke, i hope lilo i ke kumu no ka hooulu ana i na gonads a me reproductive nenoaiu o ke keiki. Eia hou, i ka yolk sac iloko o ka mua eono pule o ka hana akepaʻa kuleana pili i: ia mea i loko o kona nā'aʻaʻa, hoopaa mai la a pau hoʻopōʻino waiwai a me toxins.

E like me 'oe ke ike, i kēia hoʻonaʻauao mea nui no ka maʻamau fetal ulu. Inā ka yolk sac ua ole functioning pono, ka mea hooweliweli noho'na makaainana i ulu abortion.

Where i ka yolk sac?

ʻO nā expectant makuahine ua ike ia i hāpai keiki i ka fetus nui hana hilinaʻi nui ma luna o ka functioning a me kūlana o ke keiki. Akā, ma kahi i hana i ka yolk sac? No ka malama ekolu o ka embryo a me ke keiki mua i manawa e hoʻopau ai i ke hana. Ma keia ke kahua, me ka ho okumu ana o placental holoʻano, a me ka yolk sac ua i pono ai. Kona'aʻaʻa ua i nā hoemiia. A hiki i ka hope o ka hāpai keiki ka hoʻonaʻauao pilikia like me ka meaʻuʻuku cyst, kahi kokoke i ka piko.

Ua mea pilikia, e hoʻonui i ka yolk sac?

No keia 'ole ka mea nui, ia mea he maoli i ka mea nānā' ia ai i ka ultrasound. Ua hiki ke ike mai i ka ono o ka pule o ka hapai ana. At 12 pule 'gestation, ka yolk sac hiki ole e hoʻokolokolo hoʻohana' ultrasound.

5-10 hebedoma ka nui o ka eke pono i oi aku mamua o 5.5 mm o. Akā, i loko o nā wāhine, hapai 8-12 pule, i ka nui o ke kahua, e like me ka rula, o kahi o 2 mm o.

Akā, i kekahi manawa ke kauka E nńnń pono i ua hoʻomāhuahuaʻoe i ka yolk sac. He aha ke ano o keia ano, a pehea weliweli ia mea? I ka mea, i kekahi haiahū kūmau mai ke kūmau e hōʻike i ka pilikia i ka hāpai keiki. Maoli ai, keia mea,ʻaʻole he definitiveʻike, no ka pono 'ē aʻe, hou noiʻi. No ka laʻana, he mea ulu ma ka yolk sac hiki e wahi i kaʻai, e lawe i kekahi mau lapaʻauʻia a loa stress. Ma kekahi hihia, me ka like nā hualoaʻa US pono e hoouna aku i ka gynecologist. Wale i ka hoʻomalu ike ke kumu i ka yolk sac hiki e mahuahua, mea ia mea, a ina paha kūikawā hana ua koi 'ia.