Mea Kākau: Charles Brown
Lā O Ka Hana: 2 Pepeluali 2021
HōʻAno Hou I Ka Lā: 21 Nowemapa 2024
Anonim
Camp Chat Q&A #3: Hut Insulation - First Aid - Fingernails - Languages - and more
Wikiō: Camp Chat Q&A #3: Hut Insulation - First Aid - Fingernails - Languages - and more

Anter

ʻO ka Fertilization ka inoa o ka manawa ke hiki i ka sperm ke komo i loko o ka hua, e hāpai ana i kahi hua manu a i ʻole zygote, e hoʻomohala a hana i ka embryo, a ma hope o ka hoʻomohala ʻana e hana i ka pēpē, a ma hope o ka hānau ʻana e manaʻo ʻia he pēpē.

Hoʻomaopopo ka mea hoʻomomona i nā paipu fallopian a hoʻomaka ka hua a i ʻole ka zygote e hoʻokaʻawale i kona neʻe ʻana a hiki i ka kōpū. Ke hōʻea i loko o ka kōpū, hoʻokomo ʻia ia i loko o ka endometrium uterine a ma aneʻi, kūhelu, aia kahi pūnana (kahua pūnana) ma kahi o 6-7 mau lā ma hope o ka hoʻouluulu.

Pehea e hana ai ka hoʻoulu kanaka

Hana ʻia ka hoʻoulu kanaka ke komo kahi sperm i ka hua manu, i ka hapa mua o ka pahu fallopian, e hāpai ana i ka wahine e hāpai. Ke hiki i ka sperm ke komo i ka hua manu, pale koke kona pā i nā sperm mai ke komo ʻana.


Keʻa hoʻokahi sperm i kona membrane, e halihali ana i 23 chromosome mai ke kāne. I kēia manawa, hui pū kēia mau chromosome i hoʻokaʻawale ʻia me nā chromosome 23 ʻē aʻe o ka wahine, e hana ana i mea kōkua maʻamau o 46 chromosome, i hoʻonohonoho ʻia ma 23 mau pālua.

Hoʻomaka kēia i ke kaʻina hana o ka hoʻonui multiplication, ʻo ka hopena ka hānau ʻana o kahi pēpē olakino.

I ka hoʻouluulu vitro

ʻO ka fertilization in vitro ke hoʻokomo ke kauka i ka sperm i loko o ka hua manu, i loko o kahi keʻena kikoʻī kikoʻī. Ma hope o ka nānā ʻana o ke kauka e ulu maikaʻi ana ka zygote, hoʻokomo ʻia ia i loko o ka paia o ka wahine o ka wahine, kahi e hiki ai ke hoʻomau i ka hoʻomohala ʻana a hiki i kona mākaukau no ka hānau ʻana. Kapa ʻia kēia hana ʻo IVF a i ʻole insemination ʻimi hoʻopunipuni. E ʻike i nā kikoʻī e pili ana i ka insemination ʻaneʻi.


Nā hōʻailona hōʻailona

ʻO nā hōʻailona a me nā ʻōuli o ka momona he maalea loa ia, a ʻaʻole ʻike pinepine ʻia e ka wahine, akā hiki iā lākou ke lilo i colic mālie, a me kahi kahe liʻiliʻi a i ʻole ka wai ʻulaʻula, i kapa ʻia ʻo nidation. I ka hapanui o nā hihia, ʻaʻole ʻike ka wahine i nā ʻōuli o ka hāpai keiki a hiki i ʻelua pule ma hope o ka pūnana. E ʻike i nā ʻōuli a pau o ka momona a pehea e hōʻoia ai i ka hāpai keiki.

Pehea e ulu ai ka embryonic

Kū ka ulu embryonic mai ka pūnana a hiki i ka hebedoma 8 o ka hānau ʻana, a i kēia manawa ua hoʻokumu ʻia ka placenta, ka umbilical cord, a me kahi outline o nā meaola āpau. Mai ka hebedoma 9 o ka hānau ʻana ua kapa ʻia ka mea liʻiliʻi he embryo, a ma hope o ka hebedoma he 12 o ka hānau ʻana ua kapa ʻia ia he fetus a ma aneʻi ua ulu ka placenta no laila, mai ia manawa, hiki iā ia ke hāʻawi i nā meaola āpau e pono ai ka ulu ʻana o ka ʻōpū.

Pehea e hoʻokumu ʻia ai ka Placenta

Hoʻokumu ʻia ka placenta e kahi ʻāpana makuahine o nā papa nui a nui, i kapa ʻia he sinus sinus, a ma laila e kahe mau ai ke koko makuahine; e kahi ʻāpana fetal i hōʻike nui ʻia e kahi lehulehu nui o placental villi, i puka i loko o nā sinus sinus a ma loko e holo ai ke koko fetal.


Hoʻolahalaha nā meaola mai ke koko makuahine ma o ka membrane o ka villus placental a hiki i ke koko fetal, e hele ana ma waena o ka umbilical vein i ka fetus.

ʻO nā excreta fetal e like me carbon dioxide, urea a me nā mea ʻē aʻe, diffuse mai ke koko fetal i ke koko makuahine a hoʻopau ʻia i waho e nā hana excretory a ka makuahine. Hūnā ka placenta i nā nui loa o ka estrogen a me ka progesterone, ma kahi o 30 mau manawa o ka estrogen ma mua o ka mea i hūnā ʻia e ka corpus luteum a ma kahi o 10 mau manawa o ka progesterone.

He mea nui kēia mau hormona i ka hāpai ʻana i ka ulu ʻana o ka fetal. I loko o nā pule mua o ka hāpai hāpai ʻana, ua hūnā ʻia kekahi hormone e ka placenta, chorionic gonadotropin, kahi e hoʻoulu ai i ka corpus luteum, e hoʻomau ana i ka hūnā ʻana i ka estrogen a me ka progesterone i ka hapa mua o ka hāpai ʻana.

Pono kēia mau hormoni i ka corpus luteum no ka hoʻomau o ka hāpai keiki i ka wā o 8 a 12 mau pule mua. Ma hope o kēia manawa, hūnā ka placenta i ka nui o ka estrogen a me ka progesterone e hōʻoia i ka mālama ʻana o ka hāpai keiki.

Ke hiki ke hānau ʻia ka pēpē

Mākaukau ka pēpē e hānau ma hope o 38 mau pule hānau, ʻo kēia ka manawa maʻamau o ka hāpai hāpai olakino. Akā hiki ke hānau ʻia ka pēpē ma hope o 37 mau pule o ka hāpai ʻana me ka noʻonoʻo ʻole ʻia ma mua o ka oʻo, akā hiki ke hāpai i ka hāpai ʻana a 42 mau wiki, he kūlana maʻamau.

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