Umsebenzi Weseli Yesidoda: Okufanele Yonke Indoda Ikazi

Iseli yesidoda, ebizwa nangokuthi i-spermatozoa, iyiseli lokuzala lomuntu wesilisa elikhiqizwa ema-testes ngemva kokufikisa. Linomsebenzi wokufaka iqanda lowesifazane ngesikhathi sokuzalana.

Iseli yesidoda liqukethe impahla yofuzo eyomlingani wesilisa [1]. Ngesikhathi sokufakelana sihlanganisa le mpahla yofuzo ne-DNA yeqanda. Lokhu kuhlanganiswa kwalezi DNA ezimbili kudala ukuphila okusha.

Umsebenzi oyinhloko wesidoda ngesikhathi sokuzalana wukubhukuda liye eqandeni bese lisifaka. Ngaphandle kwesidoda esinempilo nesisebenzayo, indoda ayinawo amandla okuzala futhi ayikwazi ukuthola ukukhulelwa.

Lesi sihloko sichaza ngokuningiliziwe umsebenzi weseli yesidoda, ukuthi yini ekuseli yesidoda, nokuthi isakhiwo nomsebenzi waso kuhlobene kanjani.

Isakhiwo Seseli Yesidoda

I-spermatozoa ibonakala inesakhiwo esilula kakhulu, kodwa indlela esebenza ngayo iseli yesidoda iyinkimbinkimbi kakhulu.

Kodwa iseli yesidoda sibukeka kanjani?

I isakhiwo seseli yesidoda ihlukaniswe izingxenye ezintathu ezinkulu [2]. Isakhiwo sesidoda sihlanganisa ikhanda, ingxenye emaphakathi, nomsila. Eshedini elingezansi leseli yesidoda, ungabona usayizi weseli yesidoda nezingxenye zalo ezinamalebula.

Iseli Yesidoda Elinezincazelo (amalebula)

Ake sihlole ingxenye ngayinye ye-spermatozoa yomuntu, sichaze futhi sixoxe ngomsebenzi we-spermatozoon ekuzaleni kowesilisa:

1. Ikhanda Leseli Yesidoda

Ikhanda yisona sakhiwo esibaluleke kakhulu eshadini lesidoda. Ikhanda liqukethe impahla yofuzo, noma i-DNA, yomlingani wesilisa edluliselwa ezinganeni lapho kufakelwana.

Ikhanda liphinde liqukathe isakhiwo esibizwa ngokuthi i-acrosome, isakhiwo esifana nokheke eliqukethe ama-enzyme [3]. Ikhanda lesidoda libaluleke kakhulu ekungeneni amaseli esidoda eqandeni ngesikhathi sokufakelana.

2. Ingxenye Emaphakathi Yeseli Yesidoda

Ingxenye emaphakathi yesidoda iyindawo ye-spermatozoa ephakathi kwekhanda nomsila. Kumashadi amaningi abonisa iseli yesidoda, ungathola ingxenye emaphakathi ibhalwe njenge"msila".

Nokho, umsebenzi wengxenye emaphakathi uhlukile kowomsila. Ingxenye emaphakathi yeseli yesidoda igcwele ama-mitochondria akhiqiza amandla adingekayo ukuze iseli yesidoda sikwazi ukunyakaza.

Unikeza amandla adingekayo ukuze umsila uphushe iseli yesidoda liye eqandeni ngaphakathi emgudwini wokuzala kowesifazane.

3. Umsila Weseli Yesidoda

Umsila weseli yesidoda ubizwa nangokuthi umsila [4]. Ingxenye ende kunazo zonke esakhiweni sesidoda. Umsila noma i-flagellum usebenza njengomshini wokuqhuba. Unyakaza ngendlela efana nokushaya intshiza, futhi lokhu kunyikima kuphusha iseli yesidoda phambili.

Umsila uthola amandla okunyakaza ngokusebenzisa ingxenye emaphakathi. Ukutholakala kwalawo mandla nokunyakaza okuqhubekayo komsila kwenza kube nokwenzeka ukuthi isidoda sifinyelele iqanda.

Yini Umsebenzi Weseli Yesidoda?

Amaseli esidoda anomsebenzi owodwa okufanele awenze. Aklanyelwe ukuhambisa impahla yofuzo yendoda ekhona esidodeni iye eqandeni lomfazi. Lo msebenzi uyisinyathelo sokuqala ekuzaleni komuntu.

Singawuhlukanisa lo msebenzi izingxenye ezintathu ukuze siwuqonde kahle ngokuphelele uhlangothi ngalunye lomsebenzi wamaseli esidoda.

Lezi yilezi:

1. Ukuthwala Impahla Yofuzo

Ngesikhathi senqubo yokuvuselelwa kwesidoda, ebizwa nangokuthi i-spermatogenesis, kufika isigaba lapho iseli ngasinye lesidoda lithola ikhophi eyodwa ye-DNA. Ngenkathi amanye amaseli ngokuvamile enombhangqwana we-DNA noma ama-chromosome angu-46, amaseli esidoda wona abe nekhophi eyodwa ye-DNA noma ama-chromosome angu-23.

Le khophi ye-DNA iqukethe lonke ulwazi lwezimpawu oluvela kumlingani wesilisa. Lokhu kuhlanganisa ifa, njengamandla, ukubukeka, impilo, nezifo.

Lapho isidoda sifinyelela eqandeni futhi ukuvundiswa kwenzeka, le khophi eyodwa ye-DNA ihlangana nekhophi eyodwa ye-DNA ekhona eqandeni. Lezi zinkampani ezimbili zihlangene zakha umbhangqwana we-DNA womntwana. Lo mbhangqwana we-DNA uyipulani yokukhula nokuthuthuka komntwana ozalwayo.

2. Ukunyakaza Liye Eqandeni

Indoda ayikwazi ukugcina umntwana ngisho noma iseli lesidoda line-DNA enempilo ngokuphelele, kodwa lihluleka ukushwima liye eqandeni. Lesi sici seseli lesidoda sokukwazi ukubhukuda liye eqandeni sibizwa ngokuthi ukunyakaza [5].

I-spermatozoa ihamba ngosizo lokunyakaza komsila. Uma isidoda sesingaphakathi kohlelo lokuzala lwesifazane, umsila ucindezela isidoda siya phambili siya eqandeni. Amandla alo movement avela engxenyeni emaphakathi yesakhiwo sesidoda, equkethe ama-mitochondria.

Ucwaningo zikhombisa ukuthi amaseli esidoda nawo anomuzwa wokuqondisa osiza ukuthi ashwimele aye eqandeni [6]. Lesi sici sibizwa ngokuthi i-chemotaxis futhi sisiza ekutheni ukuvundiswa kuphumelele.

3. Ukuvundiswa Kweqanda

Ukuvundiswa wumsebenzi lapho amaseli esidoda neqanda ehlanganisana khona enze umbungu. Lo msebenzi wenzeka emafollophini, okuyingxenye ohlelweni lokuzala lwesifazane.

Ngesikhathi socansi, amaseli esidoda akhishwa esiteshini sangasese sowesifazane. Kusukela lapho, isidoda kumele sihambe sidlule esibelethweni singene emafollophini ukuze kwenzeke ukuvundiswa.

Lapho isidoda sihlangana neqanda, sikhulula ama-enzyme angena ungqimba lwangaphandle leqanda. Ngemva kokwenza isikhala, isidoda singena eselini, lapho impahla yaso yofuzo ihlangana khona nempahla yofuzo yeqanda.

Lo msebenzi ubizwa ngokuthi ukuvundiswa, futhi uyisiqalo sokuphila okusha ngaphakathi kohlelo lokuzala lwesifazane.

Indlela Yokuthuthukisa I-spermatazoa Umsebenzi?

Impilo nokusebenza kwe-spermatazoa akuzimeli kunoma yiziphi izici zangaphakathi noma zangaphandle. Ezinye zezinto ezivelele ezingathinta amaseli esidoda yilezi:

1. Ukudla Nokondleka

Ukudla okunempilo kuzosiza zonke imisebenzi yomzimba, kuhlanganise nokwakheka nokusebenza kwesidoda. Ucwaningo zikhombisa ukuthi amavithamini namaminerali athile aseka impilo nokusebenza kwamaseli esidoda [7].

Zihlanganisa amavithamini A, C, E, namaminerali anjenge-zinc ne-selenium. Ukwengeza lawa makhambi okudla okukhulunywe ngenhla ekudleni kwakho kuthuthukisa impilo nomsebenzi wesidoda.\u00a0Ukwengeza izithasiselo zokuzala ezinamakhemikhali anjenge-zinc, selenium, ne-CoQ10 ohlelweni lwakho kungakhulisa ukunyakaza kwesidoda kanye nempilo yokuzala iyonke, okusiza ohambweni oluya ekukhulelweni.

2. Ukuzivocavoca

Ucwaningo ucwaningo lwango-2023 kubonisa ukuthi ukuzivocavoca ngokulingene okuvamile kungathuthukisa ikhwalithi nokusebenza kwesidoda [8]. Ukuzivocavoca kuthuthukisa ibhalansi yama-hormone futhi kwandise ukujikeleza kwegazi, okungase kusekele ikhono lokuzala.

Nokho, kubalulekile ukuqaphela uhlobo lokuzivocavoca mayelana nempilo yesidoda. Lokhu kungenxa yokuthi eminye imisebenzi yokuzivocavoca ingalimaza izitho zokuzala futhi kunciphise ukunyakaza kwesidoda [9].

3. Ingcindezi Nempilo Yengqondo

Ucwaningo kubonisa ukuthi amazinga aphezulu okucindezeleka nempilo yengqondo embi jikelele kuhlotshaniswa kabi nesimo sokuzala [10]. Ukucindezeleka kunomthelela omubi kumazinga amahormone, okuthinta ukukhiqizwa nokusebenza kwesidoda.

Khulula ingcindezi yakho ngokwengeza ukusebenza okukhiqizayo kuhlelo lwakho losuku nosuku. Amacebiso ahlukahlukene okulawula ingcindezi nawo angasiza.

4. Ukubhema Nokusetshenziswa Kotshwala

Ukubhema, ukusetshenziswa ngokweqile kotshwala, nezinye izidakamizwa zokuzijabulisa kunganciphisa inani lesidoda futhi konakalise ukunyakaza kwesidoda. Izidakamizwa zokuzijabulisa ziphazamisa ukulawulwa kohlelo lwezinzwa phezu kwempilo yokuzala namazinga amahormone.

5. Ubuthi Bemvelo

Ucwaningo ucwaningo lwango-2022 kubonisa ukuthi ubuthi obuhlukahlukene bemvelo, njengezibulala-zinambuzane nokuvezwa ekushiseni, bungalimaza ukusebenza kwama-spermatozoa [11]. Gwema noma unciphise ukuvezwa kwakho kulezi zinto ezinobuthi ukuze uthuthukise ikhono lokuzala namathuba angcono okukhulelwa.

Okubalulekile ngomsebenzi weseli lesidoda

Uma ungazi ukuthi kuyini iseli lesidoda noma incazelo yesidoda, incazelo ethi spermatozoa noma incazelo ethe “sperm” kwezebhayoloji ithi “Uhlobo lweseli lokuzala emzimbeni wendoda.” Lona unesibopho sokuqala inqubo yokukhulelwa nokudlulisa ulwazi lwezofuzo lusuke kuyise luye ezinganeni.

Izende ziyitho yokuzala kowesilisa elikhiqiza leli selo lokuzala. Ngemva kokwabelana ngesondo, isidoda sendoda sihamba ngaphakathi komzimba wesifazane siyofinyelela iqanda kuma-fallopian tubes. Umsebenzi olandelayo weseli lesidoda ngemva kokufinyelela iqandeni wukuqalisa inqubo yokukhulelwa (fertilization).

Labo abazama ukukhulelwa bangase bafune ukuthuthukisa ikhwalithi nokusebenza kwesidoda. Izinqumo ezahlukene zempilo, njengokudla okunempilo nomsebenzi womzimba, ziyizindlela ezisebenzayo zokuthuthukisa umsebenzi wamaseli esidoda.\u00a0Kulabo abakhathazeke ngekhwalithi yesidoda sabo, ukuqonda lapho ongathola khona ukuhlolwa kokuzala kungaba yisinyathelo esibalulekile ekulinganiseni nasekuthuthukiseni impilo yokuzala.

Imibuzo evame ukubuzwa

1. Iyini incazelo yesidoda?

Abantu abaningi abazi impendulo elula embuzweni othi kuyini iseli lesidoda. I-spermatozoa ichazwa njengeseli lokuzala eliyindoda eliqala inqubo yokukhulelwa. Leli seli lithwala impahla yofuzo yomlingani wesilisa eyidlulisela enzalweni.

2. Ziyini izinhlobo ezahlukene zesidoda?

Isidoda esijwayelekile nesingajwayelekile yizinhlobo ezimbili eziyinhloko zamangqamuzana esidoda, ngokusekelwe ekubunjweni nasekosayizini yawo. Ukuma nosayizi wesidoda esingajwayelekile kwenza singakwazi ukufinyelela iqanda nokusifaka inzalo.

3. Ingabe isidoda siyinto ephilayo?

Abantu bavame ukuzithola bezibuza, ngokuphela kwesifiso sokwazi, ukuthi ingabe isidoda yisilwane esiphilayo yini. Yebo, amasidoda endoda ayizicubu eziphilayo futhi ayakwazi ukuhamba futhi asebenzise amandla.

Imithombo esetshenzisiwe

1. Küçük, N. (2017). I-DNA yesidoda nokutholakala kokuhlukana/ukucekeleka phansi kwe-DNA esidodeni. Turkish Journal of Urology, 44(1), 1-5. https://doi.org/10.5152/tud.2018.49321
2. Alberts, B., Johnson, A., Lewis, J., et al. (2002). I-bhayoloji yamangqamuzana (uhlelo lwesine). Garland Science. Isidoda. https://www.ncbi.nlm.nih.gov/books/NBK26914/ 
3. Khawar, M. B., Gao, H., & Li, W. (2019). Indlela yakhe yakhiwa ngayo i-acrosome ezilwaneni ezifuywayo nezincelisayo. Frontiers in Cell and Developmental Biology, 7. https://doi.org/10.3389/fcell.2019.00195 
4. Vyklicka, L., & Lishko, P. V. (2020). Ukuhlukanisa izindlela zokuphehlwa kwezimpawu ezibandakanyekayo ekusebenzeni komnsila wesidoda (sperm flagellum). Current Opinion in Cell Biology, 63, 154. https://doi.org/10.1016/j.ceb.2020.01.015 
5. Dcunha, R., Hussein, R. S., Ananda, H., Kumari, S., Adiga, S. K., Kannan, N., Zhao, Y., & Kalthur, G. (2021). Ulwazi lwamanje nezibuyekezo zakamuva ngokunyakaza kwesidoda nezinhlelo ezihambisanayo ekuzalweni okusizwa. Reproductive Sciences, 29(1), 7-25. https://doi.org/10.1007/s43032-020-00408-y
6. Teves, M. E., Guidobaldi, H. A., Uñates, D. R., Sanchez, R., Miska, W., Publicover, S. J., Morales Garcia, A. A., & Giojalas, L. C. (2009). Indlela esebenza ngayo emangqamuzaneni yokukhangwa kwesidoda somuntu eholelwa yi-progesterone. PLoS ONE, 4(12). https://doi.org/10.1371/journal.pone.0008211 
7. Yiziphi amavithamini okufanele indoda iwathathe uma izama ukukhulelisa umngane wayo. Conceive Plus®. https://conceiveplus.com/blogs/blog/what-vitamins-should-a-man-take-when-trying-to-conceive 
8. Belladelli, F., Basran, S., & Eisenberg, M. L. (2023). Ukuzala kwabesilisa nokuzivocavoca ngokomzimba. The World Journal of Men's Health, 41(3), 482-488. https://doi.org/10.5534/wjmh.220199 
9. Jóźków, P., & Rossato, M. (2017). Umthelela wokuzivocavoca okujulile kwezemidlalo ekwizinga lesidoda. American Journal of Men's Health, 11(3), 654-662. https://doi.org/10.1177/1557988316669045 
10. Ilacqua, A., Izzo, G., Emerenziani, G. P., Baldari, C., & Aversa, A. (2018). Indlela yokuphila nokuzala: Umthelela wengcindezi nekhwalithi yokuphila ekukhiqizeni isidoda kwabesilisa. Reproductive Biology and Endocrinology : RB&E, 16. https://doi.org/10.1186/s12958-018-0436-9 
11. Krzastek, S. C., Farhi, J., Gray, M., & Smith, R. P. (2020). Umthelela wokuchayeka kumakhemikhali ayinobuthi emvelweni emandleni okuzala kwabesilisa. Translational Andrology and Urology, 9(6), 2797-2813. https://doi.org/10.21037/tau-20-685