Usana luphefumula njani kwisibeleko?

Bonke abafazi, besesimweni, baqala ukuba nomdla kwizinto ezizodwa zokuphuhliswa nokukhula komntwana. Ngako oko, ngokuqhelekileyo umbuzo uvela malunga nendlela umntwana ephefumula ngayo esibelethweni.

Iimpawu zokuphefumula komntwana

Umntwana uhlala esenza ukunyakaza okuphefumulayo. Ngelo xesha, i-vocal cleft ivaliwe ngokuvaliweyo, oko kuvimbela i-amniotic fluid ukungena emaphaphu. Iimpawu zepulmonary asikaze zikhule, kwaye ayikho into ekhethekileyo ebizwa ngokuba yi-surfactant. Yenziwa kuphela ngeveki 34, i. Kungekudala ngaphambi kokuzalwa komntwana. Le ncedisi inceda ukuqinisekisa ukuphazamiseka komhlaba, okuphumela ekuvuleni kwe-alveoli. Emva koko, imiphunga iqala ukusebenza, njengomntu omdala.

Kuloo matyala xa le nto ingavelwanga, okanye umntwana ubonakala ngaphambi komhla ofunekayo , umntwana unxulumene nesixhobo sokungena umoya emiphakeni. umzimba ngokwawo awunako ukwenza umsebenzi wayo wokutshintshwa kwegesi.

Ukutshintshiselana kwegesi kumntwana?

Kwaye kwiiveki zokuqala zokukhulelwa, ii-placenta zifomeni eludongeni lwe-uterine. Ngakolunye uhlangothi, lo mzimba uhloswe ukutshintshiselana phakathi komama kunye nomntwana kunye nezinto eziyimfuneko, nangakolunye uhlangothi, ngumqobo ongenakunqandeka ovimba ukuxutywa kwamanzi e-biological ezifana negazi ne-lymph.

Kungenxa ye-placenta ukuba i-oksijini ephuma kwigazi lomama ingena kumntwana. I-carbon dioxide eyenziwe ngenxa yokutshintshwa kwegesi, idlula indlela yokubuya, ibuyele kwigazi lomama.

Ngaloo ndlela, indlela umntwana ephefumula ngayo kwisibeleko sikamama kuxhomekeke ngokupheleleyo kwimeko yepentecenta. Ngoko ke, ngokuphuhliswa kweempawu zobunzima be-oksijini kumntwana, okokuqala, eli lilungu liphantsi koviwo, liqhuba i-ultrasound yayo.