He aha ka spermatogenesis? hoomaopopo ana manawa

I ka wahine a kane kino noke i ke kaʻina hana o ka maturation o gametes. A ina mea maopopo lawa nā wāhine a pau i loko o keia manao, na kanaka koe i ka mea pohihihi. He olelo lealea i kekahi mamao mai ka lapaau seriously mahalo mea spermatogenesis. Akā, i ka i ka manao ia makemake eʻoluʻolu, e hoʻonui i ka ike nui, a me ka maikaʻi ka naʻauao o ko lākou mau physiology.

ka wehewehena

Omaka i kēia impromptu hele i loko o kālaimeaola a me ka histology maikaʻi aʻe i kumumanaʻo kumu. No laila, he aha ka spermatogenesis? Kēia kaʻina hana, i mea ka hopena huina hoonui o ka sperm. A pau o ke kahua o kona mana e hormones a me ka ua'emi nenoaia.

Kēlā me kēia pōʻaiapuni mau ma kahi o kanaiwa lā. He ekolu mau manawa hou ma mua o nā wāhine, akā, i ka germ keena oo, hoi, kekahi mau kauoha o ka nui i oi aku. Ma kela a me keia hora o ka 90 lā i loko o ka testis oʻoʻana haneri milionaʻeleu sperm. Ka loa oluolu ana wela no ke kaʻina - 34-35 kekelē Kelekia.

Spermatogenesis hiki ke maheleia i ekolu kūlana paha manawa:

- ka hoʻonuiʻana;
- meiosis;
- spermatogenesis.

manawa

He aha ka spermatogenesis? Kēia sequential kaʻina kahua o ka hoʻonaʻauao a me ka i mai no i koe. Biologists i ehaʻano o nā loli i nā nā'aʻaʻa:

- multiplication o keena;
- ka ulu ana;
- oo ana;
- i ke kahua o ka sperm.

A pau keia e wahi i loko o ka seminiferous tubules, Aia maloko o ka hoʻi. Ka mawaho ahu iho la ka aeee ho okumu i ka omo pa, - spermogonii. Lakou mau māheleʻia mitotically. Kēia kaʻina hoʻomaka mua hānauʻana a me ka mau a hiki i ka iwakalua-kumamalima makahiki. Keena mahele no laila, hoʻomaka koke i ka wā o ka manawa kapa i ka wā o nā'ōlelo.

Ma hope iho o ka hoouka kaua ana o puberty spermatogonia māheleʻia i loko o nā pūʻulu:

- ka poe e hoomau i ka mahele;
- ka poe i hoʻoneʻe i ka waenakonu o ka tubule i loko o ka ulu ciia.

Ma ka hou henua na keena mahuahua ma ka nui, ka mea, i ka cytoplasm waiwai i loko o ka mahuaola. O ka spermatogonia e iho i loko o spermatocytes o ka mua o ka papa. I loko o kēia wā, spermatogenesis, mai kela a me keia spermatocytes i hana mau nāʻaha hui iho, a mai ia i loaa mamua spermatids.

Spermatids laila, kōā kaulike haawi ma ka testis, ia n oaa ka mea, mai o ka loko. A ma manawa ka mea, i nā oʻo i loko o sperm, a hāʻule i loko o ka vas deferens, a laila, - i loko o ka urethra.

ka hoʻonuiʻana

Ma ka papa kuhikuhiEʻili lahilahi o ka seminiferous tubules i hoonohonoho spermatogonia, nona ka helu i manawa o ka moe maturation ke hiki ieeeea?. E like me kona morphological hiʻona ka mea, kaʻana like:

- ma ka malamalama keena o ka type A;
- pouli keena o ka type A;
- aeeaʻano B.

Dark spermatogonia i redundant, ka mea i inert i loko o ka moku'āina ma mua o ka manawa ia e pono ai aicieeaao (ma hope loa mai 'ole irradiation). Bright keena noke puunaue mitotically posing me aeee A a me B-type.

E like me ka hopena o spermatogenesis i loko o ka embryonic manawa, a mai ka hanau i ka 14 makahiki no na kanaka hoʻonui nui wai auau o aeee i hiki differentiate i loko o sperm. Ua haawi ia i hou fertility ma mua o nā wāhine (hua 300 wale, a me ka mea e ole kaʻana).

Meiosis: spermatogenesis

Spermatogonia e pili pū ana i keena o B-type mua mau manawa i puunaueia ma ka mitosis, a lilo spermatocyte mua kauoha. Kēia aeea, ma ka huli, i puunaueia ua, akā,ʻaʻole uniformly, a me ka meiosis. I ka pau ana o ke kahua mua e hana mau kaikamahine keena - i ka lua o ka papa spermatocytes, kela mea keia mea o ka i maupaʻa ka hapalua o ka helu ana o chromosomes. Ka lua o ke kahua me na welau ano mau spermatids mai kēlā me kēia spermatocytes.

A nui o ka eha hou aeee i loko mai o kekahi. Kēlā me kēia no ia i ka haploid kau o chromosomes, a i loko o ka wā e hiki mai komo i loko o ka fertilization o ka hua.

spermatogenesis

Haʻalele spermatogenesis oogenesis mai ia i loko o ka hope loa, e i like na liʻiliʻi keena ke komo aaiaoe ike,ʻaʻole pono kekahi, akā, nui a me ka piha o ka mahuaola.

I huli mai spermatocytes sperm, oia pono undergo i ka moʻo o ka nui morphological hou. Kēlā me kēia spermatid ua aia e hiki mai ana i ka Sertoli keena, kahi ia "oʻoʻana". First ua hoʻokōʻia ke kelepona hele, a laila, e holo ana, a eia kahi mea akaka i ka acrosomal granules. Mau inclusions i laila,'ākoakoa ma luna o kekahi o nāʻauamo o ka halepaahao, a he mea "acrosomal chap".

Mitochondria i Punk ma ka waena o ka halepaahao, ka mea, e neʻe i ka sperm mua. Ke cytoplasm mau e kikoo, a me ka huelo ua hana. Once ka halepaahao ua lilo i ninau ano, maturation ua ana, a me ka mea, i kona wahi ma luna o ka pā ili o ka spermatic kaula.

Hiʻona o ka ho okumu ana i keena

He aha ka spermatogenesis? - i kekahi kaʻina hana nona ka papa kuhikuhiE Pahuhopu o ka muli o kekahi oʻo olakino germ keena, i ka huina akau o aaiaoe 'ike. Ka holoʻokoʻa kaʻina hana o ka sperm helehelena o basal aeea i pili ana i ka mahina.

Ua Ua synthesized ma kekahi nā'ūhū, a kōkua i loaʻa ia i hua manu, kiʻi ia mea, hoike mai ka aiiay wahī, a hana i kekahi zygote i kane germ keena. Ka mea, i kia ma ka ia acrosomal chap, i i mua, ua kūkākūkā ma luna.

Kekahi hiʻona o ka sperm motility. Ke ovum Pńk'pika mai ka ovary a hiki i ka fallopian şarkı a me ka uterus loko wale ma AaOIeIOUIeXAOAaIN me ka fimbriae, translational noi o ka cilia a me ka peristalsis paipu. Sperm no hoi i ka huelo, a hana e like me ka flagellum, a pushes aku i ke koena o na keena.

I ka pono a me ka viability o sperm e loli ai i ka hiki aku o na laau, ka waiʻona, ai 'a me ka paka, a me nā exogenous a me ka endogenous aʻe.

Makaʻu i alakaʻi ai i ke kaʻina

All germ keena a me spermatogenesis mea nui ikepili koʻikoʻi i ka hopena o adverse aʻe. 'Aʻe' ana i kēia kaʻina hana ma kekahi o kona kahua o ka hoʻonaʻauao ke alakai i ka ho'ēmi i kā fertility paha infertility.

I loko nō o ka mea i ka ikaika ke keka ua nui manaoia e e luli i ka hua'ōlelo o ke ola, i ke kane kino ka loa ikepili koʻikoʻi i ke kulu ma ke kino mahana a me ka mea hoʻomaʻi nā mea palahēhē. Lawa like ke anu me ka hōʻemi iki hyperthermia, e luku i ka manao, e hapai i kekahi keiki no na malama ekolu.

Nolaila, na kanaka e malama walaʻauʻana koi no kou kino malama huahana e malama i ka reproductive hana no ka lōʻihi manawa:

- i loko o kekahi hihia ole e komo ai pilipaa aahu, a hiki loko koko a me nā Tuamotu hoʻonui i ka wela;
- pale pinepine kipa i aaiy a me nā bato;
- me ka mālama nui, e lawe antibiotics, Anati-hormonal ai '.

Kekahi wahine i mea e hopohopo nei e pili ana i ka mea i ka mea, ole e hapai, imi e ho ololi i ke kane kino, e hoʻoikaika 'semen. E hana i kēia, e pono e na¯ 'i kaʻai, e haawi mai inoʻano, e pale pinepine dosing o ai', inu lāʻau lapaʻau kī kahi o ke kope, hoʻokō ', a me kekahi manawa e hele ai i ka lomilomi.

Additional ano o ka waiū

Oogenesis a me ka spermatogenesis hiki ke hoʻokāʻoi artificially. E hana i kēia, e lawe mai hormonal stimulation na hoalawehana ma ka ohana lapaau nā keʻena lāʻau lapaʻau. Nō kāu, e like me ke kaʻina hana i hana ai no kēlā mau Leomakana ka poe i hoʻoholo ihola e i ke keiki ma ka IVF (i loko o lūmaua fertilization) ole ICSI (intracellular sperm ka pahu kui).

Eia naʻe, e like ke kaʻina hana i unsafe no nā hoa, a me kaʻimi hoʻopunipuni stimulants inhibit ka? Iecaianoaaiiie o kona mau hormones a aggravate infertility. Ka maoli ho'ā hope o ka spermatogenesis ia lŘlŘ i loko o nā kānaka e noho ana i loko o ke aloha. Ka lolo synthesizes nuiʻokoʻa hormones i hoʻoikaika 'ole wale i ka pono a me ka nui o semen, akā, i hooikaika mai i ka'ōnaehana paleʻea'ōnaehana, hoonui Muscle leo a me ka hōʻeleu i pūnao.

semen

I mea e loli ai i ka'ōlelo a me ka sperm? Iecaianoaaiiie, ia mea pono e hoʻomaka i Ka Ikepili o ka ejaculate. Ua piha like, e hooholo i ka helu o kaʻeleu sperm quality, hooholo pathological loli ma ke kakahiaka nui ke kahua (ina kekahi).

Ma ka maʻamau ejaculate mea he keʻokeʻo paha grayish wai a me ka'ākilikaiʻakika. I kekahi mililika me e komo i emi malalo o 20 miliona sperm, a ma luna o ka 25 pakeneka o ia i ia e lawe lima. Eia kekahi, i ka like ana o ka maʻamau keena kupono no ka fertilization e ia ma ka liʻiliʻi loa ka hapalua o ka huina. E like me ka World Health Organization mau hae, ma kahi o kanalima pakeneka o ka sperm e e ola, a i ole paewaewa ma ka morphology. Ke semen Ua ae mailuilu haalele alo o ka poepoe keena a me leukocytes. Red koko keena, macrophages, a me ka amyloid corpuscles mea e hookipa ana.

Hoomaopopo nā hoailona ia semen:

- normogramma;
- oligospermia - he uuku nui o semen;
- polyspermy - na mea he nui o ka ejaculate;
- viskozipatiya - excessive (viscosity);
- oligozoospermia - haʻahaʻa sperm helu;
- azoospermia -ʻaʻohe sperm i loko o ka loli;
- asthenozoospermia - immobility morphologically unmodified spermatozoa.

Aia i nā koho, akā, i kēia mea ma ka loa, he pono ole hihia.