Spermatogenesis - ndi chiyani ichi?

Spermatogenesis - ndondomeko zovuta mwa mwamuna, imene mapangidwe gonocytes umuna (primordial nyongolosi khungu). Zinali pa unyamata akuyamba mbali yake tima ya chitukuko komanso ndondomeko akupitiriza mpaka kukalamba. Full osiyana chitukuko umuna mkombero limapezeka pafupifupi kamodzi pa miyezi 3.

Ndi mfundo majini a umuna wa anthu. Komanso, mfundo iriyonse mu moyo wamphamvu kugonana amakhudza chonde wake. Choncho, ndondomeko imene maselo anapanga wa spermatogenesis, ayenera kumwedwa kwambiri.

Choona chidwi ndi kuti tsiku lirilonse mu testes ndi aumbike pafupifupi mamiliyoni 200 maselo umuna, ndi yotheka theka kuti pafupifupi 100 miliyoni umuna.

gawo

Izi ndi chofunika kuti lidzigwira ntchito za masiku onse aamuna ndondomeko thupi akhoza kugawidwa mu magawo atatu chifungulo cha spermatogenesis:

• Siteji koyamba chitukuko amatchedwa mitosis. Nthawi imeneyi, chulutsa maselo tsinde mu gonads, amene amatchedwa testes.
• Pa gawo lachiwiri la chiwerengero ena maselo kusandulika mu spermatocytes woyamba dongosolo. Kenako, chiwerengero chawo chinawonjezeka, ndipo patapita nthawi yochepa iwo kulowa gawo la meiosis choyamba.
• Mu siteji yotsatira za ndondomeko pali maselo, amatchedwa spermatocytes wachiwiri dongosolo. Awa, kupanga spermatids. Ndipo kale ali chifukwa cha kusintha zina kuwasandutsa umuna.

Sertoli ntchito foni

Spermatogenesis - ndi ndondomeko imene maselo ndi pafupi zedi ndi maselo Sertoli, lomwe kuchita ntchito zotsatirazi:

• kulenga mulingo woyenera kwambiri kukula kwa "tadpoles" malo;
• secrete madzi, zomwe zimafunika mu machende ukugwirira ntchito;
• kusamutsidwa kwa maselo a mpweya ndi zakudya;
• apanga kumangako mapuloteni lomwe limayendetsa testosterone maselo spermatogenic.

Cacikulu, spermatogenesis ndondomeko ndi wautali ndi zovuta, ndipo zokolola za yake yozungulira kwathunthu pa ntchito ya chamoyo wonse. Ngati munthu ali bwino, ali moyenera, umuna zabwino. Kodi izi zikutanthauza chiyani? umuna Mkhalidwe lili wambirimbiri umuna yotheka.

Wina khalidwe la spermatogenesis

Kudulidwa DNA nthawi zimenezi ayenera mwapadera. Pamene kusintha kumachitika spermatocytes, 46 DNA anawagawa m'magulu awiri. Choncho, DNA, imene timafalitsa makolo 23 mwa iwo ali mu umodzi spermatids selo, ndipo hafu inayo - mu ena. Motero, zipatso m'tsogolo ali 50% deta bambo ndi 50% ya amayi.

Zinthu zokhudza ndondomeko ya spermatogenesis

Spermatogenesis - ndi ndondomeko chimene chimadalira pa makhalidwe zachilengedwe. M'pake kuti pa chilichonse siteji ya chitukuko cha umuna akhoza kukhudzidwa ndi zinthu chowawa.

Choyamba, zinthu chachikulu ndondomeko yapadera imeneyi ndi kutentha ndi chilengedwe makhalidwe, kuwonjezera, ali mtengo ndi moyo amatsogolera munthu.

An kutentha pophatikizidwa spermatogenesis ndi 34 ° C. N'zochititsa chidwi kuti scrotum mwamuna kutentha anakhalabe makamaka chifukwa otaya yoyenera magazi.

Nthawi zina chifukwa cha kuchuluka kutentha thupi pamene unserious magawo umuna matenda mwina kwambiri kuvutika. Akatswiri musati amalangiza ntchito magalimoto mpando chotenthetsera, ngati ichinso zingachititse kuwonongeka mu khalidwe la umuna.

Kuwonjezera kutentha, kwa umoyo wa dontho la umuna zimakhudza zinthu zina.

Kutopa, mankhwala mankhwala, mahomoni kulephera - zonse zimene zingakhudze ntchito ndi kufunika kwa khalidwe umuna wamwamuna. Choncho, pamaso pathupi mwana sayenera kumwa mankhwala alionse, mantha, ntchito mankhwala.

Kumene atamu- spermatogenesis anthu?

Ngakhale chifukwa mpweya zakhudzana mu chikhalidwe cha mathamangidwe spermatozoa mwina ndichepe. A yaitali ndi mosalekeza kukhudzana ndi mankhwala akhoza kukhala chifukwa zosakhalitsa osabereka.

Ngati kwa nthawi yaitali, ndi mabanja n'zosatheka pakati mwana, choyamba limafufuza munthu. Pamafunika umuna pa kuwunika, wotchedwa "umuna".

zizindikiro Health la umuna

Mu chitukuko wabwinobwino wa n'kulemba umuna chamoyo wamwamuna pa 1 ml umuna ayenera kukhala pafupifupi 20 Mill. Chiwerengero cha umuna angathe kukhala wofanana ndi theka la chonse pamodzi. Koma ngakhale wathanzi chamoyo akhoza kupezeka anafooka umuna, chimene sichiri aberration.

Kafukufuku wosiyanasiyana wasonyeza kuti umuna khalidwe zambiri zimadalira matenda somatic amuna. Mwachitsanzo, mtima ndi matenda mtima, kuthamanga kwa magazi ndi ngakhale matenda khungu kusokoneza maselo spermatogenic.

Asayansi ku Australia anapeza kuti ubwenzi tsiku zimakhudza khalidwe la umuna. Amene amatsatira malangizo ichi, anapeza kuti mlingo wa DNA kuwonongeka anachepetsedwa ndi 20%. Ofufuzawa anafotokoza zimenezi ndi chakuti DNA umuna kudziletsa yavulala ndi sanapezeke ndi kugonana zonse yopanda chilema.

Ngakhale lingaliro bwino, madokotala ena amalangiza masiku angapo kusala kugonana. Izi zachitika kuti kuonjezera ndende wa yogwira ndi yotheka spermatozoa.

kukondoweza kwa spermatogenesis

World ziwerengero lero kuti anthu a anthu akuvutika osabereka si mkulu. Aliyense wachiwiri kwa nthawi zina kapena kalekale wosabala. Ndipo ili ndi vuto kwenikweni, chifukwa ngakhale mu m'galasi umuna ndondomeko sizingatheke popanda umuna. Kuphimba kwa osabereka anthu satenga nthawi zambiri, monga kuyenera theka wamkazi wa anthu. Usaope madokotala, chifukwa limakhudza mphamvu yotha kukhala ndi ana.

Choncho n'kofunika nthawi kupita kuchipatala. adokotala kulangiza wozengereza zinthu zina umalimbana mangolomera wa spermatogenesis.

Spermatogenesis - ndi ndondomeko kuti ndi kovuta kuti achire. Kuyamba, munthu amakhoza kulandira kufufuza zonse ndi katswiri ndi kupulumutsa umuna kusanthula - zofunikila kusanthula ejaculate, amene ntchito kudziwa chonde wamwamuna, kudziwika matenda ndi matenda m'thupi. Kungatithandizenso kupanga umuna, kutsatira ndondomeko zina, womwenso mankhwala ndi mankhwala. Dama gonadotropins - mahomoni kuti zonse ntchito ya gonads lapansi.

Pa zotsatira za mahomoni pa thupi adzakhululukidwa anafotokoza hereinafter.

Zoyamba za ayambe spermatogenesis

Bwezerani ntchito njira wamwamuna ndipo mwina yosavuta amene popanda khama mtengo. Nawa ena mwa iwo:

• kusunga kutentha mulingo woyenera: musalole kutenthedwa ya maliseche ndi;
• kupewa makhalidwe oipa (kusuta, kumwa mowa);
• kudya zakudya zoyenera, zomwe amakonda zoipa mankhwala ntchito wamwamuna;
• kukana mankhwala okhala zina ndi kununkhira enhancers;
• Iwo ali osavomerezeka ntchito ndi poizoni;
• kukana mankhwala ndi mankhwala. Ndipo ndithu mu nyengo ya ayambe spermatogenesis bwino kupewa kugwiritsa ntchito mankhwala aliwonse.

Kuti ali ndi ubwino spermatogenesis? Kumene, kudya zakudya zopatsa nthanzi kungathandize kwambiri pa ntchito imeneyi.

mankhwala

Zakudya zina mavitamini kuti kuthandiza kudzapeza chonde akazi wamphamvu. Makamaka, kuphatikizapo:

• Peyala. Lili mavitamini E ndi B6, ndi folic acid. Iwo anakhazikitsa dongosolo m'thupi ndi kuonjezera libido.
• nandolo Green ndi katsitsumzukwa. Vitamini C, amene ali mankhwala, bwino umuna motility.
• Tomato, wofiira manyumwa, vembe. pophika awo - lycopene, amene kumawonjezera ntchito "tadpoles."
• mbewu dzungu, oatmeal, mazira, nkhono, mtedza. Nthaka, amene ali nawo kumaonjezera kuchuluka ya umuna.
• Adyo. Selenium ali m'gulu kapangidwe kake, chimateteza umuna zisaonongeke ndi bwino kuti magazi aziyenda bwino.
• Ginger wodula bwino lomwe. Zingamvekere mangolomera kupanga umuna.

chidwi ziperekedwe kwa zinthu zomwe zili folic acid. Ndi chofunika kwambiri pa ndondomeko ya spermatogenesis. wambiri kupatsidwa folic acid opezeka mu zipatso Beets, dzungu, chimanga, mphodza, impso nyemba. Iwo likukhalira kuti mungathe kusintha zakudya zanu kuti umuna khalidwe zimamusangalatsa.

Kuti zina ndi ndondomeko ya nthaŵi spermatogenesis?

Mowa kumaonjezera mlingo wa mahomoni kugonana mkazi. Choncho, ngati n'kofunika kuti ntchito wamwamuna ubereki, tiyenera kusiya kumwa mowa. Kusuta ali ndi kungasokoneze ndondomeko mapangidwe spermatozoa.

Iwo ali osavomerezeka ntchito kabichi, chinangwa tirigu, ndi masamba cruciferous, zomwe zachititsanso kuti yopanga timafunika. Mawuwa ngozi yaikulu komanso zakudya mafuta. Kukazinga nyama, mayonesi, nyama yankhumba, ayisikilimu - ndi adani enieni a ziwalo zoberekera za mwamuna.

Zonsezi zingachititse kusokoneza spermatogenesis.

N'zochititsa chidwi kuti nambala ya umuna amachepetsa m'dzinja ndi yozizira, pamene m'chilimwe iwo kukhala yam'manja. Choncho, malingana ndi kuwerengera, lingaliro inadzachitika kwambiri m'chilimwe kuposa yozizira.

deta lapadera pa umuna

• Pamene mmodzi nthawi umuna amuna masamba pafupi theka la supuni ya umuna.
• Mutu wa umuna ndizo acrosome lapansi. Izi vesicle Kakhungu limapangidwa mankhwala amphamvu kuti amatha kupasuka dzira chipolopolo kuti tilowe mu ilo.
• Pambuyo umuna umuna angakhale mu thupi la mkazi masiku 7.
• Mlingo wa umuna pa umuna ukufika pafupifupi 70-80 km / h.
• Lidzawagwiritsenso (mu m'galasi umuna) akufa umuna angalenge mwana wamoyo. Chifukwa chake n'chakuti ndi izi umuna zofunika yekha DNA mkati.
• Umuna amapangidwa mosalekeza tsiku ndi tsiku.
• "Tadpoles" kusuntha ndi otaya wa mwauzimu ya "mchira".

Pomaliza

M'zipatala apadera ikuchitika m'thupi kukondoweza kwa spermatogenesis. Komabe, sikuti kupereka zotsatira khola ndi zogwirizana. Nthawi zina mankhwala limaleka ena njira titadziwa mu thupi. Kulandira reinforcements timadzi kuchokera kunja, ubongo sakufunanso kubala testosterone yake. Ndipo kuchokera khalidwe ili la spermatogenesis kokha aziwonjezereka.

N'zochititsa chidwi pamene munthu chikondi ndi nthawi yaitali, ubongo wake umayamba kutulutsa ndalama yaikulu mahomoni kuti zopangitsa, kuchititsa ndi bwino njira zambiri thupi lonse, kuphatikizapo spermatogenesis. Angachite bwino kwa anthu kumapangitsanso chonde kukonda theka ena.