Ovogenesis - o ke kaʻina hana o ke kahua o nā hua. Spermatogenesis a me ka oogenesis

Kekahi duplication a me nā'ōlelo o ke keiki i loko o ke ao nei - keia mea kekahi o ka mea nui wale nuʻukia o nā mea ola ma luna o mākou Honua. Ke aaiaoe mea ua hele mai na makua i ka hua, aʻo ia nō ka lōʻihi manawa ole, e alalai mai i kona lāhui. I kēia lā, ua kamailio hou e pili ana i kanaka procreation. E noonoo i na mea like spermatogenesis a me ka oogenesis. Where? Aneii kaʻina huli no? O ka papa, a me ka anal o na kane a aeee i wahine. Hea maila lākou i hele mai? Mākou e hoihoi i loko o ke kaʻina hana o ka gametogenesis. Ovogenesis - mea he sequential kaʻina hana o ka hoʻonaʻauao 'ia' ana o ka wahine reproductive keena. Spermatogenesis - ke kahua o ke kane ke keka aeea. E hana mākou i kēia lā, i mea like me ka mea oko mau keʻano o ka hanaʻana.

hua

Mākou i olelo mua ia ovogenesis - o ke kaʻina hana o nā'ōlelo o ka wahine reproductive keena, i kapaia o "hua." Mākou e kaumaha e kamailio iki e pili ana i ia mea no ka a me ka mea kuleana pili i ua hana. A manawa pōkole nānā i ka 'ole o ka hua.

E like me ka olelo mua, o ka hua manu - he ke keka aeea, a i ka ua hoʻokōʻia shape. Ua pono no i ka mea e pono māhuaola, no ka mea, ka papa kuhikuhiE kuleana pili i mea e hōʻoia i ka ulu ana o ka meaola, mai ka manawa mai o fertilization. Like kekahi'ē aʻe ke kelepona hele, ka hua manu i loko o ka konu he he nucleus. A puni ka kāna mau 'ōlelo me ka haploid lākou o nā chromosomes mea cytoplasm. Y He hua, a he keena aiiay, ahu iho - radiant lei. Keia inoa, i kēia iwi i aie i ka mea i ka mea, he o ka helu nui o ka poe liilii, villi.

Kokoke i ka kāna mau 'ōlelo ua hanaʻia e like me ka hopena o ka meiosis kekahi uuku kino, ka mea, o ke kahua o ka loa moku nui aeea. Ma nā mea a pau, he keiki kaikamahine i loko o ka pua paha he mea e pili ana i ka miliona hua. Akā, ma manawa, he nui wale o ko lakou make. A hiki i ka manawa o ka puberty, eia wale ma kahi o 300 tausani, a me nā ovulation e ma kahi o 400 o ia. He aha ua lilo o ke koena? Ka mea, pono e make, a me ka ole ka manawa e oo ai.

E hāpai 'ia nei, e kūkākūkā i ke kaʻina i kapaia "oogenesis". 'O kēia ka maturation o ka loa wahine gametes. E ka hoʻomaka pono manawa.

ovogenesis

Ovogenesis - o ke kahua o ka wahine gametes. Koke ia E e möakäka hou ia i loko o mammals, e hoʻomaka hiki mua hanau i loko o ke ao nei, i mea ma utero. Mua mākou kēia heluna o, a emi iho kahua o ka hoʻonaʻauao a pau o ka oogenesis, kuhikuhi i ka papa kuhikuhiE manao o keia kaʻina. Penei, i ke kuleana pili i:

• i loko o ka nucleus o ka hua manu E e hana haploid kau o chromosomes;
• zygote imua i ke alo o ka māhuaola.

Hiki koke e hoailona oukou ia ovogenesis kaʻina mea,ʻaʻole nui okoa mai spermatogenesis, oe, e hai ia ia.

No laila, ovogenesis ke kahua i na kēia:

• nā'ōlelo;
• ulu ana;
• maturation.

Ka mua ke kahua paa wahi i loko o ka opu. Ke kaikamahine i mua o ka nui helu o primordial germ keena, a ma keia kahua i: primordia a me embryos. Kēia wā e hiki mai hua loa 'Imi mahele ana, no laila, he mea i hoʻomāhuahua o oogonia. Ka mea loaa ma ka cortical, ahu iho. Ua oogonia loaa i ka mea e pono māhuaola, oia hoi:

• kumuʻiʻo;
• bipi kūpaluʻia;
• monakō koko.

He aha ka i ka likeʻole ma waena o oogonia mai germ aeee? Ka mea, i nui ka nui. Lākou similarity waiho i loko o ka mea ana i ka ia aaiaoe no makeup.

Pokole noonoo i ka lua o ka pae, e ike mākou i ka mea hana no hoi a hiki i ka hanau ana o kekahi kaikamahine. Ano, mai oogonia hana oocytes o ka mua o ka papa. Size o keia mahele ua me ka nui loa hoemi, akā, na oocytes i hoʻomaka koke ho onui ana i ko lakou kaumaha. E möakäka hou wā e hiki mai hua i ka malama loa i loko o ka palapala o prophase oocytes. Ano, aia nō ma kahi o elua miliona, a e e hou ulu wale ma kahi o 400 oocytes.

Ka hope ke kahua me ia lŘlŘ ma hope o ka nui nui o ka manawa (ma kahi o 11-12 makahiki, a i kekahi manawa hou aku). Ma kēia kahua, anapu koke hoʻomaka kona hou ulu o kekahi o ka malamaia oocytes. I ka hopena, e hele mai malama.

sperm

i ka oogenesis i hanaʻia wahine ke keka aeea kapa ovum mākou aʻo. Ano, e hele i ka spermatogenesis a me kane germ keena. No laila, no ka mau nō lā hoʻi o ka kanaka lāhui nele i ka paʻa o ka hua manu, i mea hiki ke fertilize ia. Sperm - keia mea ka kekahi pono hapalua.

Ma ke kane, sperm hiki e na miliona, i kū'ē i ka hua manu i loko o ka wahine kino. Ka mea, hoʻohui pū:

• mai ke poo;
• ai;
• waena;
• filamentous huelo.

A hiki i ka sperm hiki i ka hua manu, me ka huelo, i ka pono, e keʻoni aʻe, ua eliminated. A laila, i ka wahine germ aeee? Aaeaao wale i ke poo o ka sperm, no ka mea, hāpai i ka aaiaoe mea. Ua ua ike ia ka hua manu iwi ka loa ai ka ikaika, no laila, i ke poo o ka sperm acrosome malaila. Ua loaʻa he kūikawā waiwai, i mea hiki ke hoike mai i kaʻili lahilahi. I ka nui o ko ke kanaka ka reproductive aeea mea wale 0,05 millimeters, no laila, i mea e ike ia, e pono i ka ikaika microscope.

spermatogenesis

Spermatogenesis a oogenesis - ia Aloha nani like keʻano o ka hanaʻana. Ka mea mua a me ke kapuai e na kēia:

• nā'ōlelo;
• ulu ana;
• maturation;
• ho okumu.

Ma ke kumu kāki i ka anu u ua hanaʻia ma luna o ka tausani spermatogonia ma ka mahele ana i kela mea keia mea e pili ana i umi manawa. Iloko o ka mahele e omoʻia ka mahuaola.

Ma ka ulu ka mea, mahuahua loa ka nui. He ka ulu pae hou 'ia lŘlŘ ma ka spermatogonia spermatocytes mua kauoha.

I ka anu u 2 fission maturation ia lŘlŘ:

• meiosis (me ka hopena mākou i spermatocytes 2nd mea);
• mitosis (hana spermatids).

I loko o ke kahua o spermatids e hele mai i loko o hui 'ana me ka halepaahao keʻano o ka hanaʻana, a me ka hana sperm. Ka wā e hoʻokō 'ia kā lākou mau ho okumu, o ka waiwai ka hoʻoneʻe.

mea like

Ia lakou e ike koke e kaulana mua similarity oogenesis a me ka spermatogenesis - nā keʻano o ka hanaʻana, he pono no ke kahua, a me ka ulu maturation o gametes, kane paha, he wahine. Aka, i loko o ke kaʻina hana, ua nui na mea like, akā, he mea hiki ke kuhikuhi i kekahi oko ao.

Kekahi maa hiʻona Ua kokoke'ālike kuʻina o ke kaʻina hana (ma ka spermatogenesis i kekahi wahi hou aku). ʻO kekahi mauʻanuʻu:

• nā'ōlelo;
• ulu ana;
• maturation.

Hiʻona o kēia kahua o ka hoʻonaʻauao, ua noʻonoʻo i ka au mamuli luna. Mākou ke hoomau aku nei i na oko.

oko ao

E ka hoʻomaka me ka mea ana mākou i kekahi mau hualoaʻa me ka oogenesis a me ka spermatogenesis, oogenesis hoʻopili like me ia i ka hoʻokūkū, e like me ke kahua o ka wahine reproductive keena a me spermatogenesis - kane. E like meʻoe i mua i kekahi, ma ke kaʻina hana o ka kahua o ka spermatozoa ma kekahi wahi oi ma mua o ka ho okumu ana o ka hua. Ka mua nō hoʻi ke kahua kahua, oiai oogenesis i loko o keia anu u ua i pono ai.

ovogenesis kaʻina hoʻomaka i loko o na kaikamahine i loko o ka opu, a me ka spermatogenesis hoʻomaka i loko o nā keikikāne ka poe i hiki aku kona 12 makahiki o ka makahiki. 'O kēia kekahi koena unuhi.

Ka hope koena unuhi o ka nui helu o kane germ keena i like i na wahine. Ua hiki ke wehewehe like penei: o ka hua manu loaʻa hoʻokahi wale sperm aeea o ma kahi o 200 miliona.