Isakhiwo kanye Nomsebenzi Wezitho Zesistimu Yokuzala
Uhlelo lokuzala lomuntu luyiqoqo lezitho ezisebenza ngokubambisana ngenhloso yokuzala. Kubesilisa nabesifazane, uhlelo lokuzala lunezakhiwo nemisebenzi eyingqayizivele kodwa exhumene. Kulesi sihloko, sizoxoxa ngokujulile ngesakhiwo kanye nomsebenzi wezitho zokuzala kubo bobabili ubulili.
Uhlelo Lokuzala Lwabesilisa
Uhlelo lokuzala lwabesilisa lugxila ekukhiqizweni, ekuvuthweni, nasekulethweni kwesidoda ohlelweni lokuzala lwabesifazane. Nasi isiqondiso sokuthuthukiswa kwesitho ngasinye kanye nomsebenzi waso:
1. Amasende
Amasende yizitho eziyinhloko zesimiso sokuzala sabesilisa, ezitholakala esinqeni. Umsebenzi wawo oyinhloko ukukhiqiza isidoda kanye ne-hormone i-testosterone. Isidoda sikhiqizwa ngenqubo eyaziwa ngokuthi i-spermatogenesis, eyenzeka kuma-tubules athambile.
2. I-Epididymis
I-epididymis iyipayipi eligoqekile elinamathiselwe ngemuva kwesende ngalinye. Umsebenzi walo ukugcina nokuvuthwa kwesidoda. Isidoda esiphuma emasende asikakwazi ukunyakaza okusebenzayo futhi sidinga amasonto amaningana ukuvuthwa ku-epididymis.
3. Izivikeli zeVas
I-vas deferens iyipayipi elixhumanisa i-epididymis nomsele wokukhipha isidoda. Umsebenzi walo oyinhloko ukuthutha isidoda sisuka ku-epididymis siye e-urethra ngesikhathi sokukhipha isidoda.
4. Ama-Seminal Vesicles
Ama-seminal vesicles ayizindlala ezimbili ezikhiqiza uketshezi olucebile nge-fructose nezinye izinto ukuze zondle futhi zisize ukunyakaza kwesidoda. Lolu ketshezi luyiningi lomthamo wesidoda.
5. Indlala Yendlala Yesitho Sangasese
Indlala ye-prostate itholakala ngaphansi kwesinye futhi izungeze ingxenye engenhla ye-urethra. I-prostate ikhiqiza uketshezi lwe-alkaline oluqeda i-asidi e-urethra kanye nesitho sangasese sowesifazane, okuhlinzeka ngendawo efanelekile yesidoda.
6. Izindlala ze-Bulbourethral (Cowper's)
Lezi zindlala zikhipha uketshezi lwe-alkaline olusebenza ukugcoba i-urethra futhi luqede noma yimuphi umchamo ongase usale ngaphambi kokukhipha isisu.
7. Umthondo
Ipenisi liyisitho sobulili esakhiwe yizicubu zobulili ezingagcwala igazi, okuvumela ukuminyana. I-urethra idlula epenisi futhi isebenza njengendlela yokuphuma komchamo nesidoda emzimbeni.
Uhlelo Lokuzala Lwabesifazane
Uhlelo lokuzala lwabesifazane luklanyelwe ukukhiqiza amaqanda, ukwamukela isidoda, ukunikeza indawo yokukhulelwa, nokusekela ukukhula kombungu. Okulandelayo ingxoxo ngesakhiwo kanye nomsebenzi wezitho zokuzala zabesifazane:
1. Amaqanda
Ama-ovari ayizindlala ezimbili ezincane ezitholakala emgodini we-pelvic. Umsebenzi oyinhloko wama-ovari ukukhiqiza amaqanda (i-ova) kanye nama-hormone i-estrogen ne-progesterone. Inyanga ngayinye, i-ovary eyodwa ikhipha iqanda enqubweni ebizwa ngokuthi i-ovulation.
2. Amapayipi e-Fallopian
Amapayipi e-fallopian yiwona mapayipi axhumanisa ama-ovari nesibeletho. Ngemva kokukhipha iqanda, iqanda libanjwa yizakhiwo ezifana neminwe ekugcineni kwepayipi le-fallopian. Ukuvundiswa yisidoda kuvame ukwenzeka kule payipi.
3. Isibeletho (Isibeletho)
Isibeletho siyisitho semisipha esimise okwepheya esitholakala ethangeni. Sisebenza njengendawo yokufakelwa kweqanda elivundisiwe, sisekela ukukhula kombungu ngesikhathi sokukhulelwa, futhi siyancipha ngesikhathi sokubeletha.
4. I-Endometrium
I-endometrium ungqimba lwangaphakathi lwesibeletho oluhlanganisa isibeletho futhi lunamathele kumbungu ngemva kokukhulelwa. Umjikelezo ngamunye wokuya esikhathini, lolu ngqimba luyaqina lulungiselela ukufakwa futhi luyaphuma uma ukukhulelwa kungenzeki.
5. Umlomo wesibeletho
Umlomo wesibeletho yingxenye yesibeletho ephuma ingene esithweni sangasese sowesifazane. Idlala indima ebalulekile ekulawuleni ukugeleza kokuya esikhathini kusuka esibelethweni kuya esithweni sangasese sowesifazane futhi ivuleka ngesikhathi sokubeletha ukuze umntwana azalwe.
6. Isitho sangasese sowesifazane
Isitho sangasese sowesifazane siwumsele oxhumanisa umlomo wesibeletho nengaphandle lomzimba. Sisebenza njengomsele wokubeletha ngesikhathi sokubeletha, indawo yokuphuma kokuya esikhathini, kanye nendawo yokungena kwepenisi ngesikhathi socansi.
Imisebenzi kanye nobudlelwano beSistimu Yokuzala
Uhlelo lokuzala alusebenzi ngokuzimela. Ngesikhathi sokuthomba, ama-hormone akhiqizwa yizindlala ze-endocrine alawula ukuvuthwa ngokomzimba kanye nokulungela ukuzala. Kwabesilisa, i-testosterone ilawula ukukhiqizwa kwesidoda kanye nokuthuthukiswa kwezici zobulili zesibili njengokujula kwezwi kanye nokukhula kwezinwele zobuso. Kwabesifazane, i-estrogen ne-progesterone zilawula ukukhula kwebele, zilawula umjikelezo wokuya esikhathini, futhi zilungiselela isibeletho ukukhulelwa.
Inqubo yokuzala iqala lapho iseli lesidoda lihlangana neseli leqanda, likhiqiza i-zygote. I-zygote bese iya esibelethweni, ifake, bese ikhula ibe umbungu, bese kuba umbungu. Ukuzala okuphumelelayo komuntu kuncike ekuxhumaneni nasekuhlanganisweni kwazo zonke izingxenye zesimiso sokuzala, kanye namathonya ama-hormone anquma isikhathi kanye nokulungela ukuzala.
Isiphetho
Izinhlelo zokuzala zabesilisa nabesifazane zenzelwe ukuqinisekisa ukuqhubeka kokuphila komuntu ngemisebenzi nezakhiwo ezihambisanayo. Nakuba ngayinye inezitho nemisebenzi ethile, zisebenza ndawonye enkambisweni yokuzala. Ukuqonda isakhiwo nomsebenzi wezitho zokuzala kuyisinyathelo sokuqala sokuqonda okukhulu ngempilo yokuzala kanye nokubaluleka kokunakekelwa kwempilo okufanele ukuze lezi zinhlelo zisebenze kahle kuyo yonke impilo yomuntu.
Ekugcineni, imfundo yezempilo yokuzala ibalulekile ekuvimbeleni izifo noma izinkinga ezingasongela ukusebenza okuvamile kwalolu hlelo. Ulwazi lomphakathi kanye nokuqwashisa kungadlala indima ebalulekile ekugcineni impilo kanye nenhlalakahle yezizukulwane ezizayo.
