Umjikelezo Wokuzala Kwabesilisa: Ingabe Amadoda Aya-ovulate Njengabesifazane?

Abesifazane banomjikelezo wokuzala wanyanga zonke futhi bakhipha iseli elilodwa lokuzala, okuwumnqanda, kumjikelezo ngamunye [1]. Ngokungafani nabesifazane, amadoda awunawo umjikelezo wokuzala, futhi awakhiqizi amaseli okuzala kuphela kunoma yisiphi isikhathi esithile senyanga.

Umzimba wendoda ukhiqiza amaseli okuzala abesilisa, abizwa ngokuthi amaseli esidoda, njalo, ngaphandle kwekhefu [2]. Lokhu kwenza amadoda akwazi ukukhiqiza izigidi zesidoda nsuku zonke futhi ahlale ekwazi ukuzala. Ngabe amadoda ahlale ekwazi ukuzala? Inqubo yokukhiqiza amaseli esidoda ibizwa ngokuthi i-spermatogenesis, futhi ibalulekile ekukhulelweni [2].

DIngabe Amadoda Aya-Ovulate?

Abantu abazi ngomjikelezo wokuzala kowesifazane kodwa bengazi lukhulu ngokuphathelene nokuzala kwamadoda bavame ukubuza imibuzo enjengokuthi, Ingabe amadoda angakwazi ukuvuthwa kweqanda njengabesifazane? Ngakho uma ubuza ukuthi ingabe amadoda aya-ovulate noma ingabe abafana baya-ovulate, impendulo ithi cha — amadoda awavuthwa amaqanda.

Kulabo abangakazi kahle, i-ovulation inqubo yokukhululwa kweqanda emaqandeni, eyenzeka kanye kuphela phakathi komjikelezo wokuzala kowesifazane, noma umjikelezo wokuya esikhathini [3]. Isikhathi se-ovulation sithathwa njengewindi lokuzala, okusho ukuthi amathuba okukhulelwa aphezulu kakhulu ngaleso sikhathi, ikakhulukazi cishe ngesikhathi sobudala obuphezulu bokuzala.

Ngakolunye uhlangothi, amadoda akhiqiza isidoda esisha nsuku zonke, okwenza akwazi ukuba obaba bezingane cishe kuyo yonke impilo yawo. Ukuvuselelwa kwesidoda okuqhubekayo yikho isizathu sokuthi amadoda akwazi ukuzala yonke impilo yawo ngemva kobudala bentsha.

Umjikelezo Wokuvuselelwa Kwesidoda

Amadoda awunawo umjikelezo wokuzala noma iwindi lokuzala, kodwa anawo umjikelezo wokuvuselelwa kwesidoda [2]. Umjikelezo wokuvuselelwa kwesidoda ubhekisela enqubweni yokwakheka kwesidoda esivuthiwe sisuka kumaseli esidoda angakavuthwa.

Lo mjikelezo uthatha cishe izinsuku ezingu-64 kuya kwezi-74 ukuze uqede, kusukela ekuqaleni kokukhiqizwa kwesidoda kuze kube yilapho amaseli esidoda evuthwe ngokuphelele futhi eselungele ukuchumisa.

Umjikelezo wokuvuselelwa kwesidoda wenzeka kuma-testes futhi unesibopho sokuhlinzeka njalo ngesidoda esinempilo. Nsuku zonke, umzimba ukhiqiza izigidigidi zesidoda, esilungile ukuchumisela. Yilokho okwenza amadoda ehlala enesikhono sokuzala.

Izigaba Zomjikelezo Wokuvuselelwa KweSidoda

Umjikelezo wokuvuselelwa kwesidoda, noma i-spermatogenesis, uyinguqulo yamadoda ye-ovulation eyenzeka ezigabeni eziningana. Nazi:

1. I-Mitosis

Ama-testis aqukethe izigidigidi zamaseli esidoda angakavuthwa nganoma yiliphi isikhathi, abizwa ngokuthi ama-spermatogonia [4]. Umjikelezo wokuvuselelwa kwesidoda uqala ngokuhlukana kwe-spermatogonia.

Esigabeni se-mitosis, lawa maseli ayahlukana akhe amanye amaseli angeziwe azokhula ekugcineni abe yizidoda ezivuthiwe.

2. I-Meiosis

Esinyathelweni sesibili, amaseli e-spermatogonia amasha adlula ku-meiosis, uhlobo olukhethekile lokuhlukana kwamaseli olwehlisa inani lama-chromosome awo libe uhhafu. Lesi sigaba sibalulekile ngoba silungiselela amaseli esidoda ukuze akwazi ukuchumisa.

Ngesikhathi sokuchumiseka, uhhafu wama-chromosome aqhamuka eqandeni nasesidodeni ahlangana ukuze akhe i-chromosome ephelele [5]. Ngemva kwesigaba se-meiosis, lawa maseli abizwa ngokuthi ama-spermatocyte.

3. Amaseli Esidoda Asekuqaleni

Ngemva kwesigaba se-meiosis, ama-spermatocyte aguquka abe amaseli esidoda asekuqaleni, abizwa nangokuthi ama-spermatid. Ama-spermatid asamele angakavuthwa futhi awakalungeli ukuchumisa kulesi sigaba.

4. Ukuvuthwa

Esigabeni esilandelayo, ama-spermatid adlula ochungechungeni lwezinguquko ezenza avuthwe ngokuphelele. Akha imisila ukusiza ukunyakaza, kanti amakhanda awo ayacindezeleka ukuqukatha ulwazi lwezakhi zofuzo olubalulekile [6]. Lezi zinguquko zivumela amaseli esidoda ukuthi afinyelele eqandeni futhi alivundise.

5. Ukugcinwa ku-Epididymis

Ngemva komjikelezo ophelele wokuvuselelwa kwesidoda, amaseli esidoda asanda kwakheka ayiswa ku-epididymis, lapho agcinwa khona.

E-epididymis, isidoda sithola ikhono eliphelele lokunyakaza, okusho ukuthi singabhukuda kahle ukuze sifinyelele ku-fallopian tube futhi sivundise iqanda. Sigcinwa lapha kuze kube umuntu efika ku-orgasm ngesikhathi sokwabelana ngesondo bese ekhupha isidoda.

Ungayikhuthaza Kanjani Inqubo Enempilo Yokukhiqizwa Kabusha KweSidoda?

Ukukhiqizwa kabusha kwesidoda inqubo yemvelo kowesilisa eqala ngesikhathi sokufikisa futhi iqhubeke kuyo yonke impilo yomuntu wesilisa. Ungasekela inqubo yokukhiqizwa kabusha kwesidoda ngokudla ukudla okunempilo, ukuzivocavoca njalo, nokulawula ingcindezi.

Ukugwema ukubhema, ukunciphisa utshwala, nokunciphisa ukuvezwa kwakho kumakhemikhali ayingozi nakho kungathuthukisa izinga lesidoda kanye nempilo yokuzala iyonke.

Uma ukhathazekile ngesimo sakho sokuzala lapho uzama ukukhulelwa, kuhlale kuyindlela enhle ukwabelana ngesimo sakho nodokotela okhethekile kwezokuzala ukuze uthole ukuhlolwa okuningiliziwe kwezempilo yakho yokuzala. Ngale ndlela ungathola izeluleko ezenzelwe wena ngokuya ngesimo sempilo yakho yokuzala.

Okubalulekile

Amadoda awukhishi amaqanda noma akhiqize amaseli okuzalana kanye ngenyanga njengabesifazane. Esikhundleni salokho, akhiqiza izigidi zamaseli esidoda nsuku zonke ngenqubo ye-spermatogenesis ema-testes. Yingakho umjikelezo wokuzala kowesilisa ungakhawulelwanga esikhathini esithile; amadoda ahlala enekhono lokuzala ngaso sonke isikhathi emva kokufikisa.

Amadoda angathuthukisa inqubo yokukhiqizwa kabusha kwesidoda ngokudla ukudla okuqukethe izakhamzimba ezibalulekile, ukuhlala esebenza emzimbeni, nokugwema imikhuba yokuphila emibi efana nokubhema nokuphuza utshwala ngokweqile.

Izinsiza Ezisetshenzisiwe

1. Thiyagarajan, D. K., Basit, H., & Jeanmonod, R. (2024, September 27). I-physiology, Umjikelezo wokuya esikhathini. StatPearls - NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK500020/ 
2. Suede, S. H., Malik, A., & Sapra, A. (2023d, March 6). I-histology, I-spermatogenesis. StatPearls - NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK553142/ 
3. Professional, C. C. M. (2024h, May 1). Ukuchitshiyelwa kweqanda (Ovulation). Cleveland Clinic. https://my.clevelandclinic.org/health/articles/23439-ovulation 
4. Kubota, H., & Brinster, R. L. (2018). Amangqamuzana esiqu sokuqala e-spermatogonial†. Biology of Reproduction, 99(1), 52–74. https://doi.org/10.1093/biolre/ioy077 
5. Oliver, R., & Basit, H. (2023d, April 17). I-embryology, Ukukhulelwa. StatPearls - NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK542186 
6. Mortimer, D. (2018). I-anatomy yokusebenza ye-spermatozoon yomuntu: ehlobanisa i-ultrastructure nomsebenzi. Molecular Human Reproduction. https://doi.org/10.1093/molehr/gay040