Iintsana zinendlela ekhethekileyo yokukhula ngaphakathi kwisibeleko sikanina. Banezidingo ezifanayo, malunga nokutya kunye ne-oksijini, kodwa abakasebenzisi inkqubo yokugaya okanye yokuphefumla. Imiphunga iya kwakheka ngexesha lonke lokukhulelwa, kodwa abasayi kuzisebenzisa de babe bazalwe, kungoko sizibuza indlela abantwana abaphefumla ngayo ngaphakathi kwesisu somfazi okhulelweyo.
Siyazi inimba, kodwa amaxesha amaninzi asazi ukuba yiyiphi imisebenzi ebonakala kwisibeleko somfazi okhulelweyo. Le tyhubhu ebhetyebhetye idibanisa usana kwi-placenta kwaye iya kuyinceda ifumane izondlo ezifunekayo kunye neoksijini. Kule migca ilandelayo sichaza indlela eyimisebenzi ngayo kwaye yintoni ebalulekileyo ekukhuleni komntwana.
Index
Uphefumla njani umntwana ngaphakathi esiswini somfazi okhulelweyo?
Usana okanye usana ludinga ukutya kunye neoksijini ukuze sikhule kwaye siphuhlise. Awunakuyenza njengoko siqhele ukwazi, kodwa uthatha ezi zinto ngentambo yombilical.
Inkaba idibanisa usana kwiplacenta., i-placenta yakhe nayo idityaniswe kwisibeleko sikamama. Imveku engekazalwa ayisebenzisi imiphunga yayo ukuphefumla, kodwa ikwenza oko ngentambo yombilical. Ioksijini iqukuqela kwi-umbilical vein, ukuze ifikelele entliziyweni ize isasazwe kuwo wonke umzimba.
Emva igazi elingenawo umoya-mpilo ezilishumi elinambini ngenkaba ukuya esibelekweni, apho ithatha ioksijini kwakhona ukuze ibuyele kusana. Ngale nkqubo, ulawulo oluchanekileyo lwe-oksijini efunekayo lulawulwa, ngaphandle kokuba kubekho i-surplus okanye naluphi na uhlobo lwe-saturation.
Imisebenzi yentambo ye-umbilical
El inimba idibanisa i-fetus kwi-placenta. Luhlobo lwe-conduit eguquguqukayo eyondla umntwana nge-oxygen kunye nezondlo. Inomlinganiselo omalunga ne-56 cm. Ubume bayo kunye nomsebenzi yinxalenye yophuhliso lokukhulelwa konke, ekubeni ngokusebenzisa imithambo emibini ye-umbilical umntwana unokondliwa ngokufanelekileyo.
Imiphunga iyakhula ngexesha lokukhulelwa
- Imiphunga yosana iqalisa ukukhula kwiveki yesihlanu yokumitha, apho zikhula ngokuthe ngcembe zenze i-alveoli.
- Phakathi kweeveki 7 ukuya kwi-16 umthi we-bronchial kunye nezakhiwo ezixhasa imiphunga (i-cartilage, imithambo yegazi kunye nezihlunu) ziqala ukwenza.
- kwiveki ye13 umntwana uya kuqalisa ukuphefumla intwana ye-amniotic fluid kwaye uya kuyikhupha kwakhona, iya kuba sisigaba sakhe esincinci sokulungiselela.
- Entre iiveki 17 ukuya 27 i-bronchi iya kuqalisa ukuhlukana ibe yi-bronchioles kwaye apho i-pneumocytes kunye ne-surfactant iqala ukubonakala, into evimbela i-alveoli ukuba ibambelele xa iphefumla umoya.
- Ukusuka iveki 28 ukuya 36 I-alveoli yokuqala iyavela, eya kwenziwa ngokusesikweni kunye nesakhiwo sonke semiphunga kude kube ngumzuzu wokuzalwa.
Imiphunga lilungu lokugqibela ukugqiba ukukhula ngexesha lokukhulelwa. ekubeni intambo yombilical ithatha indawo yomsebenzi wayo ngaphandle kwengxaki. Usana luhlala phantsi kwamanzi kwindawo ehlala emanzini ebizwa i-amniotic fluid nalapho imiphunga yakho iya kuzaliswa ngolu lwelo.
Ukuphazamiseka kweoksijini ngexesha lokukhulelwa
Ukuphazamiseka kweoksijini kunokwenzeka ngexesha lokukhulelwa. Omnye unobangela usenokuba ukufinyela okunamandla ngokugqithisileyo okanye xa kukho a i-uterine hyperstimulation. Ukusetyenziswa ngokungafanelekanga okanye ngokungafaniyo kwe-oxytocin kunokudlala indima ebalulekileyo, ibe ngunobangela wale nyaniso.
Ngexesha lokukhulelwa kunokudala ukuphazamiseka kwendlela yeoksijini kwi placenta, mhlawumbi ngenxa ye-placenta previa, i-placenta abruption, usulelo lwentsholongwane, i-anemia, okanye ukwakheka kwe-hemoglobin engaqhelekanga. Ukuphazamiseka kwe-oksijini ngentambo ye-umbilical ingaba enye yezizathu, apho kuya kufuneka ukuba funda nzulu ukuba kutheni isenzeka.
Kuze kube yilapho umntwana azalwe, ummangaliso ode ulindelwe awuyi kwenzeka. Ide idlule kumjelo wokuzala okanye ihanjiswe ngotyando, impumlo yakho kunye nomlomo awukakulungeli ukuvulwa kwaye sezela umoya okokuqala. Oku kuxa uphefumla umoya kwaye imiphunga yakho iya kwanda, nto leyo ebangela ukuba ioksijini ihanjiswe ngegazi lakho ukuze uphile.
Yiba ngowokuqala ukuphawula