Ukuzalwa kwenzeka ezintlangeni ezintathu eziphambili:
- kwithuba lokuqala, elihlukaniswe ngezigaba ezi-3 (ekuqaleni, okanye ngokukhawuleza, esebenzayo kunye noshintsho).
- ixesha lesibini, okanye iinzame ;
- kwixesha lesithathu, xa iindonga zesisu zihluke kwi-uterus.
Ixesha lokuqala lokubeletha
Eli nqanaba libonakaliswa yimivalo - iziphambano eziqhelekileyo zezihlunu zesisu ezihamba kunye nokuvulwa komlomo wesibeleko ngaphambi kokuba kuzalwe ubomi obutsha. Eli lixesha elide kakhulu, elingapheli iiyure ezili-12, kwaye ngamanye amaxesha ngaphezulu.
Kwisigaba sokuqala, ibhinqa liqala ukuziva ulwaphulo-mthetho, aluyibuhlungu kakhulu. Ubungakanani babo bufikelela malunga nemizuzwana engama-20, kunye nexesha eliphakathi kwazo linokuba malunga nemizuzu engama-30. Ekubeni umntwana uzalelwe ixesha elide, kwaye ukubeletha kuyinkqubo enzima kwaye yomeleleka, umama omele ulindele kwaye uzame ukuphumla phakathi kweemfazwe.
Emva kwexesha, baqina kwaye baninzi, kwaye ukuvakalelwa koluhlungu kuqinisa. Esi sisigaba esisebenzayo, ngexesha le-cervix liza kuvula malunga no-8 cm. Kulo nqanaba, lixesha lokukhumbula zonke iindlela zokuphumla nokuphumula ukuze ubalekele intlungu. Kubalulekile ukuphawula ubude beemfazwe kwaye ukuba ngasinye sihlala malunga neyoku-1 imizuzu kwaye ubude buninzi malunga nemizuzu eyi-10, ke le yithuba lokuthatha izinto kwaye uye kwiwadi yesibhedlele phantsi kolawulo lweengcali.
Kwi sigaba sentshintsho, izibhambano ziqhutywa kwixesha elide ukuya kwi-5 imizuzu, ngamnye unokufikelela ngaphezu kweminithi. Umntu ongenamdla unokuziva unqwenela isihlalo - oku kuyinto eqhelekileyo, kuba umntwana usuka ngaphantsi kwi-canal yokuzalwa kunye nexesha elifanayo kwi-rectum, okubangela ukuvakalelwa okuthile. Ziyabonakala ngaphambi kokuba umntwana azalwe.
Imizamo kunye nokuhlukana kwepentecenta
Ixesha lesibini lezabasebenzi, okanye umsebenzi, libizwa ngokuba lixesha lokuxoshwa komntwana, ekubeni umntu omncinci uzalwa, ngokwenene, ngokufanelekileyo ngeli xesha. Iintlukwano kule nqanaba zihamba kunye neengcinezelo ezinzima zesisu kunye nesifiso esingenakunqwenelekayo sokunyusa nzima kunokwenzeka. Ibhinqa kufuneka ikhumbule ukuba le nqanaba elibalulekileyo kwaye umntu kufuneka aphulaphule ugqirha okanye umbelethisi kuzo zonke izinto ukuze kungabikho nkxalabo kunye nekhefu. Kwinqanaba lemizamo yendalo, iimeko ezilandelayo zibonelelwa, kunceda unina ekubambeni ukuba abhekane nomsebenzi:
- izihlunu zesisu zikhulu kakhulu kwaye zilula ukuze umntwana azalwe;
i-pelvis ye-pelvis yomama ozayo sele isele ekuqaleni kwezabasebenzi ukusabalalisa ukwenzela ukuba unike umntwana ukuba ahambe ngedaka lokuzalwa; - Ikhanda le-crumb alinawo amathambo angeneli, okuvumela ukuba lihlehlise.
Intloko yentsana iyona nxalenye ebalulekileyo yomzimba wakhe, kuba kungekudala xa ibonakala ngaphandle, inkqubo ihamba ngokukhawuleza. Emva kokuba umntwana ezalwe aze enze ukuphefumula kwakhe, umntwana uya kusulwa aze agqoke isifuba kunina.
Emva koko landela isigaba esilula nesincinci sokusebenza-ixesha apho i-placenta ihlula kwiindonga zesisu. Ngelo xesha, abaninzi abafazi abasayi kukhumbula ngeengxaki ezihambelana nokuzalwa.