Izingxenye Zomzimba Wendoda Neshadi

Imizimba yabesilisa nabesifazane inezinhlelo zokuzala ezihlukene ezinimisebenzi ehlukene. Kwabesilisa, uhlelo lokuzala luqukethe izingxenye zangaphandle nezangaphakathi. 

Izingxenye zomzimba wesilisa ngomdwebo zihlanganisa ipenisi, isikhwama samasende, namasende, kuyilapho izingxenye zangaphakathi zihlanganisa amadlala neziqukathi ezahlukene.

Umdwebo Wohlelo Lokuzala Kwesilisa Onamamalebula

Ingxenye ngayinye yohlelo lokuzala lwesilisa inomsebenzi ohlukile, kodwa zonke zifaka isandla ekufezeni umsebenzi owodwa: i- ukwakheka nokuhanjiswa kwesidoda ukuzala [1].

Ake sixoxe ngezitho ezahlukene zomzimba womuntu wesilisa ngomsebenzi wazo nemidwebo ukuze siqonde kangcono.

Umuntu Wesilisa Umdwebo We-Anatomy

Lo mdwebo we-anatomy yomzimba wendoda noma wezitho zomzimba wesilisa ubonisa kokubili izitho zangaphandle nezangaphakathi.

Umdwebo Wezitho Zomzimba Wesilisa

 Ingxenye ngayinye ye- uhlelo lokuzala lwesilisa, kusukela kumadlala angaphakathi kuya kwipenisi, kudlala indima ebalulekile ekukhiqizeni, ekugcineni nasekuletheni isidoda [2].

Izitho Zangaphandle Zohlelo Lokuzala Lwesilisa

Izakhiwo zangaphandle zohlelo lokuzala lwesilisa zihlanganisa ipenisi, isikhwama samasende, namasende. Ingxenye ngayinye inomsebenzi othile ekukhiqizweni kwesidoda, ukugcinwa kwaso, nas ekudlulisweni kwesidoda ukuze kube nokuzala.

Nansi imisebenzi yezakhiwo zangaphandle zohlelo lokuzala lwesilisa:

1. Ipenisi

Ipenisi liyitho lomzimba lomuntu wesilisa elihlanganyela ohlelweni lokuzala nasehlelo lomchamo. Yona yitho elivelele kakhulu elihlukanisa ngokucacile kunoma yimuphi umdwebo wezinzuzo zesilisa.

Ipenisi isakhiwo esimise okwepayipi esibhekele ukuhambisa isidoda ngesikhathi sobulili. Njengengxenye yohlelo lomchamo, ipenisi livumela umchamo uphume emzimbeni ngokudlula emgodini womchamo (urethra).

2. Isikhwama samasende

Isikhwama samasende sibonakala ngaphansi nje kwepenisi kunoma yimuphi umdwebo wezitho emzimbeni wesilisa. Si uyisikhwama sesikhumba esibamba futhi sivikele amasende. Isikhwama samasende ilawula izinga lokushisa wamasende futhi iwagcine ebandayo ukuze kukhiqizwe isidoda kahle [3].

Imisipha yesikhwama samasende ingadonsana ilethe amasende eduze nomzimba ukuze awafudumeze uma izinga lokushisa langaphandle lipholile. Ngokufanayo, imisipha yesikhwama samasende ingakhululeka ukuze ihudule amasende kude nokushisa komzimba uma kushisa ngaphandle.

3. Amasende

Uma ubeka amalebula ezithweni zangaphandle zobulili besilisa, ungathola amasende ngaphansi nje kwepenisi. Amasende yizitho ezimbili ezimise okweqanda ezisemkhwameni wesende. Akhiqiza futhi avuthise isidoda futhi akhiphe i-testosterone. Amasende enza isidoda aligcine ukuze livuthwe kuze kube selilungele ukuphuma ngesikhathi sokuchama isidoda.

I-testosterone iwuhomoni oyinhloko wobulili besilisa okhiqizwa amasende akhiqiza [4]. Ngaphezu kwendima yalo enkulu ekukhiqizeni isidoda, i-testosterone ibhekele ukuthuthukisa izimpawu zobudoda ezifana nezinwele ebusweni nezwi elijulile.

Izitho zangaphakathi zohlelo lokuzala lwesilisa

Ingxenye yangaphakathi yohlelo lokuzala lwesilisa iqukethe izingxenye eziningi ezibalulekile. Zonke lezi zitho zangaphakathi zisebenza ndawonye ukukhiqiza isidoda esivuthiwe nokusiza ekuthuthweni kwaso.

Umfanekiso wezingxenye zangaphakathi zomzimba wesilisa

Nazi ezinye izindlala ezisizayo nezinye izitho zangaphakathi zohlelo lokuzala lwesilisa kanye nemisebenzi yazo:

1. I-epididymis

I-epididymis iyishubhu elide eligoqiwe elingezansi kwe-spermatic cord futhi elisemuva kwaso sonke isende. Yamukela isidoda esisanda kukhiqizwa amasende.

I-epididymis igcina isidoda futhi ilusize sivuthwe. Lapho itho lobulili lesilisa ligcwala igazi bese liqina, imisipha ye-epididymis iyacindezela iphushise isidoda liye ku-vas deferens.

2. Isikhwama sesidoda

Izikhwama zesidoda zingezinye zezindlala zohlelo lokuzala lwesilisa futhi zitholakala eduze kwesisekelo sesinye. Lezi zindlala zikhiqiza futhi zikhiphe uketshezi olunothile kashukela namaprotheni ku-semen.

Uketshezi olwenzeka ezikhwameni zesidoda lwenza cishe 80% yoketshezi lonke eliphumayo ngesikhathi sokuchama isidoda [5]. Liqukethe i-fructose, enikeza amandla ukuze isidoda sikwazi ukuhamba.

3. I-vas deferens

I-vas deferens iyishubhu elinemisipha elamukelayo isidoda livela ku-epididymis bese elidlulisela emijelweni yokuphuma kwesidoda. Ngesikhathi sokuchama isidoda, i-vas deferens idlala indima enkulu ngokuhambisa isidoda liye ku-urethra, lapho isidoda siphuma khona emzimbeni.

4. Imijelo yokuphuma kwesidoda

Imijelo yokuphuma kwesidoda yakhiwa ngokuhlangana kwezikhwama zesidoda kanye ne-vas deferens. Ngemva kokuqoqa uketshezi ezikhwameni zesidoda nase-vas deferens, le mijelo idlula esandlaleni se-prostate. Esandlaleni se-prostate, imijelo iqoqa olunye uketshezi lwe-semen olwenziwa izindlala ze-prostate.

5. Isandlala se-prostate

Ungasibona isandlala se-prostate esitholakala ngaphansi nje kwesinye kunoma yimuphi umdwebo wezitho zomzimba wesilisa. Sikhiqiza futhi sikhipha uketshezi oluya ku-semen ukuze lulondle isidoda. Siphinde silawule ukugeleza komchamo njengoba sizungeza i-urethra.

6. I-urethra

Uma ubheka umdwebo wamathambo omzimba wesilisa, uzobona umsele ovuleka ungene esithweni sangasese sowesilisa; lo umchamo (urethra). I-urethra iyingxenye enkulu yakho kokubili uhlelo lomchamo nohlelo lokuzala. Ngenxa yokuthi i-urethra iyingxenye ye-urinary tract male anatomy, idlala indima ebalulekile kokubili ekukhipheni umchamo nasekuthuthweni kwesidoda ngesikhathi sokuchama kwesidoda.

Iqoqa umchamo esinyeni bese iwukhipha ngaphandle komzimba. Indima yawo ohlelweni lokuzala iwukukhishwa koketshezi lwesidoda esithweni sangasese sowesilisa (ipipi) ngesikhathi sokuchama kwesidoda (ejaculation).

Isiphetho: Ukubaluleka Kokwazi Izingxenye Zomzimba Wesilisa

Izingxenye zomzimba wesilisa ziyizitho ezihlukene ezisebenzisana ukuze zikhiqize isidoda, zisivuthise, bese zisikhulula emzimbeni. Ungahlukanisa izitho zohlelo lokuzala lwesilisa zibe yizitho zangaphandle nezangaphakathi kuye ngokuthi zikhona kuphi emzimbeni.

Isitho ngasinye sixhasa amanye amathambo omzimba ukuze ngokubambisana enze imisebenzi eyinkimbinkimbi yokukhiqiza isidoda, ukwakheka kokuqina (erection), nokuchama ngesidoda (ejaculation). Ukuqonda umehluko phakathi kwemidwebo yomzimba wesilisa yamalungu omzimba kusiza ekuqapheliseni izinguquko ezijwayelekile nezingajwayelekile, okubalulekile ekutholeni kusenesikhathi izinkinga ezingaba khona zempilo. Ukuxhasa la mathambo abalulekile ngokudla okunomsoco okufanele kanye ngezinongo zokwengeza zokugxila ekuzaleni kungathuthukisa impilo yokuzala kwabesilisa.

Izinsiza Ezisetshenzisiwe:

1. Gurung, P., Yetiskul, E., & Jialal, I. (2023). I-Physiology, uhlelo lokuzala lwesilisa. Ku StatPearls [Internet]. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK538429/
2. Cleveland Clinic. (n.d.). Uhlelo lokuzala lwesilisa. Cleveland Clinic. https://my.clevelandclinic.org/health/body/9117-male-reproductive-system
3. Pham, S., & Schultz, J. S. (2021). Ukulawulwa kwezinga lokushisa kwamaphaphu (testicular thermoregulation) maqondana ne-spermatogenesis nokuvimbela inzalo. Ijenali yeThermal Biology, 99, 102954. https://doi.org/10.1016/j.jtherbio.2021.102954
4. O'Donnell, L., Stanton, P., & de Kretser, D. M. (2017). I-Endocrinology yohlelo lokuzala lwesilisa nokwakheka kwezimuncwana (spermatogenesis). Ku-K. R. Feingold, B. Anawalt, M. R. Blackman, nabanye (abahleli), Endotext [Internet]. MDText.com, Inc. https://www.ncbi.nlm.nih.gov/books/NBK279031/
5. Zaidi, S., Gandhi, J., Seyam, O., Joshi, G., Waltzer, W. C., Smith, N. L., & Khan, S. A. (2019). Imbangela, Ukuxilongwa, Nokuphathwa Kwamatshe E-seminal Vesicle. Urology Yamanje, 12(3), 113-120. https://doi.org/10.1159/000489429