Embryonic ulu au

Embryonic manawa, haawi ia ia e like me embryogenesis, originates mai i ka huina o na nuclei o ka wahine a me na kane gametes, a ho i ka fertilization kaʻina. No laila, no ka mea, ua mau meaola i kamaʻilioʻana, e mālama '-Natal kūpono' ana, embryogenesis welau a me ka hanau ana, ma ka meaola i ke 'ano o ka larval? Acaeoey - e waiho ana i ka embryonic membranes.

Embryonic hooulu ana au i kekahi mau kahua o ka hoʻonaʻauao.

1.Zigota. At fertilization kāne ke keka aeea, i hiki i ka hua manu, e hoʻonāukiuki kona ulu ana. Ua hoʻomaka e ana Nine Inch a me ka physical keʻano o ka hanaʻana i he hoʻonui ai i ke kahua o ka symmetry o ka hua manu, ke hoʻopau membranes nuclei, kūpono ma nā aeea nuclei kaula hō'ā, a ua hanaʻia o ka DNA.

2. kaomi (ka mua kahua o? Acaeoey o ka zygote) - he mahele o ka zygote. Ma ka hua manu, a ua neʻe iho ka fallopian Tube, e hana Groove, no ia mea, he mea aeea mahele. I hanaʻia i loko o kēiaʻaoʻao aeee i kapa morula. Kēia ka anu u Ua ho'āʻo a pau multicellular meaola i paʻi nā kiʻie okoa mea wale nō i ke kaʻina hana o ka halepaahao mahele (kahahānai,ʻeluaʻaoʻao,ʻoni iho).

A hiʻona o ka halepaahao mahele o ia ka mea e ole ulu. Kēia kaʻina komo ai i ke kahua o kekahi nui aeee (hua aeea) nui helu o ke keena liilii, me ka poʻeʻuʻuku cytoplasm kokoke i na nuclei.

Embryonic manawa 'aʻole e hoʻopau' aneʻi, noonoo i ka kēia kūpono 'ana o ke embryo ke kahua.

3. Ka blastula (ho okumu ana o multicellular hale i loko o ka palapala o ka Oe) - he o ka ahu iho la ka aeee i i haawiia keia i like embryonic. blastula nui hoʻokokoke mai i ka nui o ka hua manu, no laila, i ke kelepona hele mahele, me ka helu ana o nuclei a me ka DNA, piʻi pū.

4. Gastrulation -ʻanuʻu holo o embryonic keena, kūpono ma ka ho okumu ana i ekolu, ahu iho embryonic kuina. Kēia kahua Ua wehewehe aku ma ka ulu i loko o ka hoʻololi kemikala o nā polokina, a ribosomes, i loko o kēia wā, he mea protrusion o ka laau (vegetative) blastula maloko, i pili e ku pono ana auamo, a ua eliminated ka lua blastula. Kēia i ka mea hou lua, i kapaʻia ka blastopore a iniiaiie waha.

Penei, he pono ikehu gastrulation embryo ulu ana, mai embryonic wā ma kēia kahua mau hiʻohiʻona nō ke kahua o kona nā loko a me nā'aʻaʻa a me ka hui, nenoai.

It E e hoʻomaopopo, ke kahua o nā'aʻaʻa a me nā loko o ka embryo ma kekahi mau manawa i kekahi pā lonoaʻili i kaʻino wale i? Aneie ololi, e like me nā mea palahēhē, pāhawewe a Nine Inch paha. Mau manawa o ka mahuahua pā lonoaʻili i kapaia noho pilikia, malaila ua mahuahua likelihood o ka ulu abnormalities.

No ka laʻana, ka mea embryonic wā mea he mau noho pilikia heluʻai. E mākou huli ia i loko o aku au mamuli:

1. blastula manawa (ka mua mau pule ma hope o ka hapai ana) - embryo kekahi make, a mau no ka Hawaiʻi me ka deviations. I kēia manawa he nui helu o ka make no embryos (40%), a hoomaka ae la i ko lakou ulu ana o mutated germ keena.

2. Ma ka iwakālua o ka seventieth lā ma hope o fertilization - i ka wā o ka nui loa hoʻonawaiwali o ka embryo like e hoʻomaka ana i ka e waiho, a ke lilo a pau nui nā loko.

3. E ka fetal wā ua wehewehe aku ma ka kokololio ulu o ka fetus. Eia muli o kona kulana pinepine loaʻa paha e ka 'aʻe' ana i ka ulu wale ma ia mau nā loko, ka poe i ole pau i ko lakou ho okumu.

Penei, embryonic ontogenesis manawa i wehewehe aku ma ke kahua a me ka hooulu ana o ka embryo ma ke kelepona hele mahele, ho okumu i nā'aʻaʻa, nā loko, a nenoai. Kekahi mau meaola ĸokoĸa ana nä pane i kēia wā o ka manawa, akā, ma kekahi hihia, e hoʻomaka ma ka hapai ana a me ka welau a me ka hanau ana o ka hou ola kekahi.