Kuphi indawo yokugcinwa nokuvuthwa kwesidoda emzimbeni wendoda?

Uma uzama ukuqonda ukuthi ukusebenza kokuzala kuhamba kanjani, kuhle ukwazi ukuthi yikuphi emzimbeni wendoda okuyindawo yokugcina nokuvuthwa kwesidoda. Ukwazi lokhu kungasenza umehluko omkhulu uma uzama ukukhulelwa. Uhambo lwesidoda kusukela ekukhiqizweni kuze kufike ekuvuthweni luyinqubo eyinkimbinkimbi kodwa edonsela ukunaka. Lubandakanya izingxenye eziningana zesimiso sokuzala sowesilisa, ngayinye idlala indima eyingqayizivele ekuqinisekiseni ukuthi isidoda silungele umsebenzi waso omkhulu: ukufecunda iqanda.

Ukukhiqizwa Nokuvuthwa Kwesidoda: Sibheke Ngosondelene

Ake siqale-ke ekuqaleni. Ukukhiqizwa kwesidoda, noma i-spermatogenesis, kuqala emsendeni (amasende). Ngaphakathi kwala masende kunemithambo emincane, esongwe, ebizwa nge-seminiferous tubules lapho isidoda sakhiwa khona empeleni. Kodwa nansi into ebalulekile: indawo lapho isidoda sivuthwa khona futhi sigcinwe khona akusona isende uqobo. Cha! I-epididymis. Leli chweba elide, eligoqekile, lihleli ngemuva kwawo wonke umthondo wesende. Lapha yilapho ukuvuthwa kwesidoda kwenzeka khona ngempela. Kufana nesikole sokuqeqesha sokugcina sesidoda, lapho sifunda khona ukuntweza kahle futhi silungiselwa ukufecunda iqanda [1].

Indawo yokuvuthwa kwesidoda yiyo lapho “umlingo” wenzeka khona. Isidoda sithola ikhono lokunyakaza, noma njengoba ososayensi bekusho, siba namandla okunyakaza (motile). Yonke le nqubo ithatha izinsuku ezimbalwa. Ngalesi sikhathi, ukwakheka kwesidoda nendlela esisebenza ngayo kuthola ukulungiswa okukhulu. Ngakho-ke, i-epididymis idlala indima ebalulekile, iqinisekisa ukuthi isidoda asilungile nje kuphela, kodwa silungele kakhulu ukufecunda iqanda.

Ukuqonda inqubo yokuvuthwa kwesidoda kusiza ukuphendula umbuzo othi, kuthatha isikhathi esingakanani ukuthi isidoda sizivuselele, okubalulekile kunoma ubani okhathazekile ngokungazali nokuphila kahle kwesidoda.

Kwenzekani Empeleni Ku-Epididymis?

Ngakho-ke, ake singene kancane sijule kulokho okwenzeka ku-epididymis, le ndawo ebalulekile yokuvuthwa kwamasidoda. Uma amasidoda esefikile ku-epididymis, adlula ezinguqukweni ezibaluleke kakhulu. Awafundi nje kuphela ukubhukuda – adlula ekuguqukeni okukhulu maqondana nokwakheka kwamaprotheni awo kanye nendlela amaseli awo ahlelwe ngayo. Lo msebenzi ubalulekile ekuzaleni ngoba, ngaphandle kwawo, amasidoda ngeke akwazi ukudlula ohlelweni lokuzala lwesifazane ukuze afinyelele iqanda futhi alichumise. Lapha ku-epididymis yilapho kuvuthwa khona amasidoda. Futhi uyazi? Lapha futhi yilapho amasidoda agcinwa khona aze afinyelele isikhathi sokukhishwa!

Yebo, i-epididymis ifana nendawo yokugcina impahla futhi. Ibamba amasidoda, iwagcine enempilo futhi elungele ukuhamba izinsuku ezimbalwa ezinhle, noma kwesinye isikhathi amasonto, kuye ngokuthi owesilisa uchitha kangaki isidoda. Ikhono lokugcina amasidoda (spermatozoa) lapha liqinisekisa ukuthi amasidoda ahlala elindile njalo, okubalulekile ekuzaleni [2].

Ukuqonda indlela amasidoda avuthwa ngayo futhi enza lezi zinguquko kuhlobene kakhulu nokuqonda umsebenzi weseli lesidoda, okuyinto ebalulekile ekuchumeni okusebenzayo nasekuzaleni okuphelele.

Indlela Amasidoda Ahamba Ngayo: Indima Ye-vas deferens Nezindlala

Lapho isikhathi sokuchithwa kwesidoda sesiseduze, amasidoda avuthiwe aqala ukuhamba ephuma ku-epididymis engena ku-vas deferens – efana nomgwaqo wemisipha. I-vas deferens iqhubekisela amasidoda phambili ngokuncipha kwemisipha ebushelelezi kuze kufike emithanjeni yokuchithwa eduze kwendlala yamadoda (prostate gland). Lapha, amasidoda ahlangana namanzi avela kuma-seminal vesicles nendlala yamadoda, kwakheka isidoda (semen). La maketshezi anondla futhi avikela amasidoda, elungiselela uhambo lwawo ngokusebenzisa i-urethra aphume embikwenhla yesitho sangasese sowesilisa ngesikhathi sokuchithwa kwesidoda [3].

Ngakho-ke, indawo lapho amasidoda evuthwa khona futhi egcinwa khona ixhunywe ngqo kulo lonke lolu hambo. Lokhu kuqinisekisa ukuthi amasidoda awavuthiwe kuphela, kodwa futhi aphephile futhi anondlekile ngaphambi kohambo olubalulekile oluzayo. Khumbula, ngaphambi kokuchithwa kwesidoda amasidoda angagcinwa ku-epididymis. Lapha yilapho ehlala khona aze alungele ukuphuma. Izinto ezifana nokushisa, ibhalansi ye-pH, kanye nokuba khona kwama-antioxidant eketshezini le-epididymal konke kusiza ukugcina ukusebenza kahle kwamasidoda ngalesi sikhathi.

Ngaphambi Kokuchithwa Kwesidoda: Amasidoda Agcinwa Kuphi?

Kuyathokozisa ukwazi ukuthi ngaphambi kokukhishwa kwesidoda isidoda singagcinwa ku-epididymis. Lesi sigaba sokugcinwa sibaluleke kakhulu ngoba sigcina isidoda sisemgudwini omuhle size sidingeke. Cabanga ngayo njengendawo yokulinda – isidoda sigcinwa siphilile, sinempilo, futhi silungele ukusebenza. Uma uzama ukukhulelwa, ukuqonda indawo yokuvuthwa nokugcinwa kwesidoda kubalulekile ngoba noma yikuphi ukuphazamiseka kulo msebenzi kungathinta ukuzala. Isibonelo, izinkinga ku-epididymis noma ukuvinjelwa ku-vas deferens kungaholela ekutheni ikhwalithi yesidoda yehlise noma kube nokungabi nenzalo ngokuphelele [4].

Imicabango Yokugcina

Ngakho, ukuphetha, indawo yokugcinwa nokuvuthwa kwesidoda emzimbeni wendoda uhlelo oluhleleke kahle oluhilela amasende, i-epididymis, i-vas deferens, nezindlala ezisizayo. Ukwazi ukuthi isidoda sivuthwa kanjani nokuthi sigcinwa kuphi ngaphambi kokukhishwa kwesidoda kusiza ukucacisa ukuzala kowesilisa. Kulabo abasendleleni eya ekubeni nabantwana, ukwenza izinguquko ezilula endleleni yokuphila, ukucabanga ngezithasiselo, nokugxila empilweni yokuzala kungaletha umehluko omkhulu [5].

Imibuzo evame ukubuzwa

Ukuvuthwa kwesidoda kwenzeka kuphi emzimbeni wendoda?

Ukuvuthwa kwesidoda kwenzeka ku-epididymis, lapho isidoda sifunda ukuntweza futhi sithole ikhono lokuch fertiliza iqanda.

Yini inhloso ye-epididymis ekugcineni isidoda?

I-epididymis isebenza njengendawo lapho isidoda sivuthwa futhi sigcinwe khona, ibamba isidoda esivuthiwe size sifike isikhathi sokukhishwa kwesidoda.

Isidoda singagcinwa isikhathi esingakanani ngaphambi kokukhishwa kwesidoda?

Ngaphambi kokuphuma kwesidoda, isidoda singagcinwa ku-epididymis izinsuku kuya emasontweni, kuye ngokuthi ukukhishwa kwesidoda kwenzeka kaningi kangakanani.

Izikhombo

1. James ER, Carrell DT, Aston KI, Jenkins TG, Yeste M, Salas-Huetos A. Indima ye-epididymis kanye negalelo lama-epididymosome ekuzaleni kwezilwane ezifuywayo. Int J Mol Sci. Iyatholakala ku: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7432785/
2. Sullivan R, Frenette G, Girouard J. Ama-epididymosome abandakanyekile ekutholeni amaprotheni amasha esidoda ngesikhathi sidlula ku-epididymis. Asian J Androl. Iyatholakala ku: https://pubmed.ncbi.nlm.nih.gov/17589785/
3. Cooper TG. I-epididymis, ama-droplet e-cytoplasmic nokuzala kowesilisa. Asian J Androl. Iyatholakala ku: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3739406/
4. Cornwall GA. Ukubuka okusha ngobunjalo nomsebenzi we-epididymis. Hum Reprod Update. Iyatholakala ku: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2639084/
5. Lüpold S, Calhim S, Immler S, Birkhead TR. Ukuma kwesidoda nesivinini sesidoda ezinyonini ze-passerine. Proc Biol Sci. Iyatholakala ku: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2679085/