He aha te mea spermatogenesis? te whakatau wā

I roto i te tinana wahine, me te tane tonu te tukanga o te matuatanga o tohuhema. A ki te mea he mārama nui nga kotiro katoa i roto i tenei whakaaro, nga tangata noho i te mea ngaro. Ko reira pea e matara atu ana i rongoa tangata tino miharo aha spermatogenesis. Otiia ki te whai i te whakaaro e te mea pai ki te whakawhānui i te mōhiotanga whānui, me te pai ake te māramatanga o ratou ake whaiaroaro.

whakamāramatanga

Tīmata tenei haerenga Spicer ki koiora me te histology pai i roto i te turanga ariā. Na, he aha te mea spermatogenesis? Tenei tukanga, i te mea te hua mutunga o te parāoa. ngā wāhanga katoa o ona mana e hormones me te pūnaha io.

pumau ia huringa e pā ana ki e iwa tekau nga ra. Ko e toru ngā wā neke atu i te wahine tenei, engari pakari nga pūtau iroriki, rawa, e rave rahi whakahau o nui rahi. I ia haora o te ra 90 i roto i te raho tupulaki rau miriona parāoa hohe. Ko te pāmahana tino whakamarie mo te tukanga - 34-35 nekehanga degrees.

Ka taea te wehea Spermatogenesis ki toru ngā wāhanga wā ranei:

- tini;
- pūira;
- spermatogenesis.

wā

He aha te mea spermatogenesis? Tenei Mataora tukanga raupapa, me e he taahiraa. Ōmataora he momo wha o huringa i roto i te kopa:

- whakarea o ngā pūtau;
- tupu;
- e maoa;
- te hanganga o te parāoa.

tenei katoa e wahi i roto i te tubules seminiferous, kei roto i te komurumurua. Ko te kahu i waho o ngā pūtau hanga te taiepa tubular, - spermogonii. wehea tonu ratou mitotically. Ka tīmata tēnei tukanga i mua i whanau, me te haere tonu tae noa rua tekau-rima tau. wehe na tere e te wā o te wā ka karanga te wā o te uri Pūtau.

I muri i te tīmatanga o te pūhuruhurutanga o spermatogonia wehea ki e rua ngā rōpū:

- te hunga e tonu ki te wehe;
- te hunga e kua oho ki te pokapū o te tubule i roto i te rohe tupu.

I te wāhi hou nga pūtau ake i roto i te rahi, to ratou he cytoplasm taonga i roto i ngā matūkai. O spermatogonia ae whakaputaia ketia ana ki spermatocytes o te tikanga tuatahi. I roto i tenei wā, spermatogenesis i ia spermatocytes i hanga e rua āpiti, a i a ratou kua whiwhi kē spermatids.

Spermatids ka whakanoho iho tuwha mo te raho, faaineine i te reira i te roto. A i runga i te wā e ratou āta pakari ki parāoa, e taka ki roto ki te tātea vas, a ka - i roto i te taiawa mimi.

tini

I e whakaritea te membrane matua o nga tubules seminiferous spermatogonia, taea nei te maha i te wā o te matuatanga fakasekisualé tae piriona. faaite ratou E ai ki ona āhuatanga morphological:

- i roto i te pūtau marama o te momo A;
- pouri pūtau o te momo A;
- momo pūtau B.

He i näianei spermatogonia pouri, he ratou e mangere i roto i te āhua i mua i te kau ina e hiahia ana ratou whakatika (i muri i te mate kino irradiation ranei). tonu wehe pūtau Bright mitotically araunga rite ngā pūtau A me B-momo.

Ko te mutunga o te spermatogenesis i roto i te wā embryonic, me i whanau ki te 14 tau mō ngā tangata whiwhi nui poka wai o ngā pūtau e taea te tītore ki parāoa. homai tenei ratou he hua roa atu wahine (300 anake hua, a kihai ratou e faaite).

Pūira: spermatogenesis

E wehea Spermatogonia e pā ana ki ngā pūtau o te B-momo tuatahi torutoru nga wa i te whāū pūira me te riro spermatocyte tikanga tuatahi. Tenei pūtau, i roto i te tahuri, e tahuri iho hoki, engari e kore e kaupae, me whāiti pūira. I te mutunga o te atamira tuatahi e hanga e rua pūtau tamahine - te spermatocytes kia tuarua, ia o nei Kei roto te hawhe te maha o ngā pūira. Ko te wāhanga tuarua mutu puka e rua spermatids i ia spermatocytes.

E ahu mai ana te katoa o wha pūtau hou i tetahi. Ia o ratou kua he huinga haploid o ngā pūira, a kia i roto i te heke mai wāhi i roto i te kikiritanga o te hua manu.

spermatogenesis

Haunga te spermatogenesis oogenesis i taua kia whai taea roto i rite maha pūtau iti mōhiohio iranga, e kore noa tetahi i roto i te whakamutunga, engari nui, me te ki tonu o ngā matūkai.

Ki tahuri atu spermatocytes parāoa, me waha e ia he raupapa o ngā rerekētanga morphological nui. Kei ia spermatid te muri ki te pūtau Sertoli, te wahi reira "tupulaki". pūtau porotaka Tuatahi, ka unu a puta reira nga granules acrosomal. E ka ēnei inclusions huihui i runga i tetahi o nga amo o te pūtau, a reira he "pōtae acrosomal".

E whātatahia ngā pungaraungao i roto i te waenganui o te pūtau, ka neke ratou te parāoa mua. tonu te cytoplasm ki totoro, ka hanga e te hiku kei te. Kia kua riro te pūtau he puka maheni, oti matuatanga ko, a ka e te reira tona wahi i runga i te mata i roto o te aho tātea.

Āhuatanga o te hanganga o ngā pūtau

He aha te mea spermatogenesis? - he tukanga nei matua whāinga ko te putanga o te pakeke pūtau iroriki hauora, i te nui e tika ana o te mōhiohio ā-ira. Ko te tukanga katoa o te parāoa ahua o pūtau basal e pā ana ki te marama.

Kei te synthesized reira e whākōkī motuhake, e tauturu i ki te kitea he hua manu, te tiki ki reira, tareka te takotoranga tiaki, me te hanga i te whakatō kākano i roto i ngā pūtau iroriki toa. E hāngai ana ratou i roto i te pōtae acrosomal taua, e kua oti kōrero i runga ake.

Ko tētahi atu āhuatanga ko te motility parāoa. Nga neke ovum i te kura kākano ki te pūkano, me te kōpū i roto i anake mā te taunekeneke ki fimbriae, nekehanga paneke o ngä makawe me te ioio ngongo. Parāoa hoki kua he hiku, e mahi rite te pihi, a ka pana whakamua te toenga o te pūtau.

Te kounga me te oranga tonutanga o te parāoa pānga te fariiraa o ngā rongoā, waipiro, taero e te avaava, a ētahi atu āhuatanga exogenous me endogenous.

Ngā āhuatanga e awe i te tukanga

Katoa pūtau iroriki me spermatogenesis he tino tairongo ki te pānga o ngā āhuatanga kino. Tūkinotanga o tenei tukanga i etahi o ona wāhanga taea arahi ki te hua iti pākoko ranei.

Ahakoa te meka e te tikanga whakaaro te sex kaha ki kia aueue ore i roto i ngā o te hauora, ko te tino tairongo ki te taka i roto i te pāmahana te tinana me te mate viral te tinana tane. Nui matao noa ki te tūāhuruiti iti, ki te whakangaro i te mahere ki te hapu i te tamaiti mō te toru marama.

Na reira, kia mau nga tangata tūtohutanga taketake mo koutou hua tiaki tinana ki tiaki i te mahi whakaputa uri mō te wa roa:

- i roto i tetahi take e kore ki te kakahu kikī, e taea whakapōrearea i rere te toto, me te whakapiki ake i te rohe i te pāmahana;
- karo toronga auau ki saunas me pati;
- ki te tūpato ki te tango paturopi, taero anti-hormonal.

He āwangawanga e pā ana ki te meka e kore ratou ki hapu, e ngana ana ki te whakaawe i te tinana toa ki te whakapai ake i purapura moenga ētahi wahine. Ki te mahi i tenei, e hiahia ana koe ki te etahi i te kai, e hoatu ake mau peu kino, ki te karo dosing auau o taero, inu tea otaota hei utu o kawhe, mahi, a ia wā haere ki te mirimiri.

tikanga atu o te rongo

Ka taea te whakarei Oogenesis me spermatogenesis āwenewene. Ki te mahi i tenei, te kawe i roto i hoa whakaongaonga hormonal i roto i haumanu rongoā te utuafare. Tikanga, Kei te mahi taua ngā tukanga mō te hunga faaipoipo e kua whakaritea ki te whai i te tamaiti e IVF (i roto i vitro kikiritanga) ranei ICSI (intracellular werohanga parāoa).

Heoi, he haumaru hoki hoa e rua pērā i ngā tukanga, me stimulants horihori tautāwhi i te hanga o ona ake hormones me whakahōhā te pākoko. Ko te faaitoitoraa tūturu o te spermatogenesis puta i roto i nga tangata e te hunga i roto i te aroha. synthesizes te roro maha hormones rerekē e whakapai ake i te kounga me te nui purapura moenga o kore anake, engari whakakaha ano hoki te pūnaha ārai mate, ake i te oro uaua, me te whakatere pākia.

purapura moenga

I roto i te tikanga ki te pā i te uri me te parāoa production, he mea e tika ana ki te whakahaere i te tātaritanga o te tokomauri. Tenei ako taipitopito ki te whakatau i te maha o te kounga parāoa kaha, whakatau huringa pathological i te wā wawe (ki te tetahi).

I roto i te tokomauri noa ko te wai ma grayish ranei he kawatanga kūpapa. I roto i te kotahi ritamano kia roto i kaua e iti iho i te 20 miriona parāoa, a mo te 25 ōrau o ratou i ki kia pūkoro. I tua atu, kia waiho te rahi o ngā pūtau noa e tika ana mō te kikiritanga i te iti rawa hawhe o te katoa. E ai ki ngā paerewa Health Organization World, kia kia ora e pā ana ki rima tekau ōrau o te parāoa me te whai kore kōtītiti i roto i te Morphology. Ko te purapura moenga whakaaetia te aroaro iti o ngā pūtau tawhio me leukocytes. e kore e mai pūtau whero toto, macrophages, me corpuscles amyloid.

Wehewehe tohu taua purapura moenga:

- normogramma;
- oligospermia - he nui iti purapura moenga o;
- polyspermy - tokomaha o tokomauri;
- viskozipatiya - pokey nui;
- oligozoospermia - tatau parāoa iti;
- azoospermia - kahore parāoa i te inu;
- asthenozoospermia - immobility morphologically spermatozoa ōnaianei kia.

He atu kōwhiringa, engari ko te take tino noa tenei.