Isakhiwo kanye Nomsebenzi Wezitho Zokuzala Zesilisa
Uhlelo lokuzala lwabesilisa ludlala indima ebalulekile ekuzaleni kwabantu. Ukuze uqonde ukuthi lolu hlelo lusebenza kanjani, kubalulekile ukuqonda isakhiwo kanye nomsebenzi wezitho zokuzala zabesilisa. Kulesi sihloko, sizoxoxa ngalezi zitho ngokuningiliziwe, kusukela ezindaweni zazo zangaphakathi kuya kwezingaphandle, kanye nemisebenzi yazo.
1. Isingeniso Esimisweni Sokuzala Sabesilisa
Uhlelo lokuzala lwabesilisa luqukethe izitho eziningana ezisebenzisana ukukhiqiza, ukugcina, nokukhulula isidoda. Lesi sidoda sidlala indima ekuvundiseni iqanda lowesifazane, isinyathelo sokuqala enkambisweni yokuzala. Lezi zitho zifaka phakathi ama-testes, ama-epididymis, ama-vas deferens, ama-seminal vesicles, i-prostate gland, kanye ne-penis.
2. Isakhiwo kanye Nomsebenzi Wama-Testes
Amasende yizitho eziyinhloko zesimiso sokuzala sabesilisa, anesimo seqanda futhi atholakala ngaphakathi kwe-scrotum. I-scrotum iyisikhwama sesikhumba esilenga ngaphandle komzimba futhi sisebenza ukugcina izinga lokushisa lamasende elifanele, lipholile kancane kunezinga lokushisa lomzimba. Lokhu kubalulekile ngoba ukukhiqizwa kwesidoda kudinga izinga lokushisa eliphansi kancane kunezinga lokushisa lomzimba, cishe ku-34-35°C.
Umsebenzi oyinhloko wama-testes ukukhiqiza isidoda kanye ne-testosterone, i-hormone yobulili yabesilisa. I-Testosterone ngokwayo idlala indima ebalulekile, okuhlanganisa ukuthuthukiswa kwezici zobulili zesibili njengokukhula kwezinwele zobuso kanye nezwi elijulile emadodeni.
3. I-Epididymis Nendima Yayo
I-epididymis iyipayipi eligoqekile elitholakala ngemuva kwamasende. Lesi sitho sisebenza njengendawo yokugcina nokuvuthwa kwesidoda ngemva kokuba sikhiqizwe emasende. Isidoda esiphuma emasende ekuqaleni asishukumi futhi asivuthwa ngokugcwele. Ngaphakathi kwe-epididymis, isidoda sidlula enkambisweni yokuvuthwa amasonto amaningana kuze kube yilapho sesilungele ukuvundisa iqanda.
Ngaphezu kwalokho, i-epididymis idlala indima ekumunceni kabusha isidoda esingasetshenziswanga noma esonakele, igcine ukuhlanzeka nempilo yezicubu zokuzala zabesilisa.
4. I-Vas Deferens kanye Nokuthuthwa Kwesidoda
I-vas deferens iyipayipi elixhumanisa i-epididymis ne-urethra. Ngemva kokuba isidoda sivuthiwe ku-epididymis, sithuthwa nge-vas deferens ngesikhathi sokuphuma komchamo. Izindonga ze-vas deferens zakhiwe yimisipha efinyela ngesigqi ukuze iqhube isidoda siye emgudwini wokukhipha umchamo.
Ama-vas deferens asebenza njengendawo yokugcina isidoda yesikhashana, elungele ukukhishwa uma kukhuthazwa ucansi ngendlela efanele. Ku-vasectomy, ama-vas deferens ayasikwa noma avalwe ukuze kuvinjelwe isidoda ukuthi singahambi, ngaleyo ndlela asebenze njengohlobo lokuvimbela inzalo.
5. Ama-Seminal Vesicles kanye Nomnikelo Wawo
Ama-seminal vesicles yizindlala ezitholakala eduze kwesisekelo se-vas deferens. Lawa ma-gland anesibopho sokukhiqiza cishe u-60% wevolumu yesidoda. Uketshezi olukhiqizwayo luyi-alkaline futhi luqukethe i-fructose, umthombo wamandla wesidoda, kanye nama-prostaglandin, asiza ekwandiseni ukunyakaza kwesidoda.
Ngokusiza ekunciphiseni imvelo ene-asidi emgudwini womchamo wesifazane, uketshezi oluvela kuma-seminal vesicles lwandisa amathuba okusinda kwesidoda nokuvundisa iqanda. Lo msebenzi uqokomisa ukubaluleka kwama-seminal vesicles ekuthuthukiseni impumelelo yokuzala.
6. Indlala Yesitho Sangasese kanye Noketshezi Lwesidoda
Indlala ye-prostate itholakala ngaphansi kwesinye, izungeze i-urethra, futhi idlala indima ebalulekile ohlelweni lokuzala lwabesilisa. Le ndlala ikhiqiza uketshezi lwe-prostate, olwenza cishe u-30% womthamo wesidoda sonke. Lolu ketshezi lune-asidi kancane futhi luqukethe ama-enzyme nezinye izinto ezithuthukisa ukuzala kwesidoda.
I-prostate nayo idlala indima ekulawuleni ukugeleza komchamo. Ngesikhathi sokukhipha isisu, imisipha ezungeze i-prostate iyafinyela, okuphoqa ingxube yesidoda kanye noketshezi lwesidoda lungene e-urethra, lapho luphuma khona emzimbeni ngesikhathi sokuvuthwa.
7. Ipenisi: Isakhiwo kanye Nomsebenzi
Ipenisi iyisitho sangaphandle esiyinhloko sohlelo lokuzala lwabesilisa futhi isebenza ebulilini nasekukhishweni komchamo. Ipenisi yakhiwe ngamakholomu amathathu ezicubu zobulili: i-corpora cavernosa ezimbili phezulu kanye ne-corpus spongiosum eyodwa phansi, ezungeze i-urethra.
Umsebenzi oyinhloko wepenisi ohlelweni lokuzala ukuletha isidoda e-urethra yowesifazane ngesikhathi socansi. Ukuma kwenzeka lapho igazi ligeleza liye ezicutshini zokuma, okubangela ukuba ipisi likhule futhi liqine, okuvumela ukungena.
8. I-Urethra njengendlela ephindwe kabili
I-urethra iyipayipi elisebenza imisebenzi emibili emzimbeni wesilisa: lisebenza njengendlela yokukhipha umchamo kanye nokudlulisa isidoda ngesikhathi sokukhipha. Ngesikhathi sokukhipha isidoda, imisipha engaphansi kwesinyi iyafinyela ukuze ivimbele ukuphuma komchamo, okuvumela ukuthi kukhishwe isidoda kuphela ngaphandle komzimba.
Isiphetho
Sekukonke, uhlelo lokuzala lwabesilisa luqukethe uchungechunge oluyinkimbinkimbi lwezitho ezisebenza ngokuvumelanayo enkambisweni yokuzala. Ingxenye ngayinye, kusukela emasendeni, akhiqiza isidoda, kuya epenis, ethwala isidoda ngesikhathi socansi, inendima ethile nebalulekile. Ukuqonda isakhiwo kanye nomsebenzi walezi zitho zokuzala zabesilisa kubalulekile hhayi nje ekuqondeni ukuthi lolu hlelo lusebenza kanjani kodwa futhi nasekuqondeni izimo ezahlukene zempilo ezingaluthinta.
Ngalolu lwazi, kunethemba lokuthi umuntu ngamunye angaqonda kangcono ukubaluleka kokulondoloza impilo yezitho zokuzala nokuthi izifo noma izinkinga ezahlukahlukene zingavinjelwa noma zelashwe kanjani ngempumelelo.
