Chii chinonzi pulmonary surfactant uye kuti inoshanda sei
Zvemukati
Pulmonary surfactant chinhu chinogadzirwa nemuviri icho chine basa rekufambisa kuchinjaniswa kwemweya wekufema mumapapu. Chiito chayo chinotendera pulmonary alveoli, ayo ari madiki masaga anokonzeresa kuchinjanisa gasi, kuti arambe akavhurika panguva yekufema, kuburikidza nekukakavadzana, izvo zvinofambisa kupinda kweoxygen muropa rinotenderera
Vacheche vasati vasvika vangangove vasina kugadzirwa kwakakwana kweanogadzira mapurmonary kuti ave nechokwadi chekufema uye, nekudaro, vanogona kukura nekufema kwehutachiona hwehutachiona hwehutachiona, zvichikonzera kuoma kwakanyanya mukufema.
Neraki, pane mushonga, unova wekunze unoshanda nesimba, unoteedzera muviri wemunhu, uye unobatsira kufema kwemwana kusvika wakwanisa kuzvigadzira wega. Mushonga uyu unogona kupihwa muawa yekutanga mushure mekuzvarwa kwemwana, kuitira mhedzisiro inokurumidza, kuburikidza nehubhu yakananga mumapapu.
Mabasa evanoshanda nesimba
Basa hombe remushonga wepurmonary kugadzira firimu yakatenderedza iyo inobvumidza kuvhura kwakakodzera kwepulmonary alveoli uye inobvumira kufema, kuburikidza:
- Kugadziriswa kwekuvhurwa kwealveoli;
- Kuderera musimba rinodiwa pakuwedzera kwemapapu;
- Kudzikiswa kwehukuru hwealveoli.
Nenzira iyi, mapapu anogara achishanda uye achikwanisa kuita kuchinjana kwegesi nemazvo.
Chii chinokonzeresa kushomeka kwemuchina
Mushandi anoshanda anogadzirwa panguva yekukura kwemapapu emwana, achiri mudumbu raamai, mushure memasvondo makumi maviri nemasere. Naizvozvo, vacheche vasati vazvarwa vanozvarwa nguva ino isati yasvika, vanogona kunge vasina kugadzirwa kwakakwana kwechinhu ichi, izvo zvinokonzeresa kufema kwemwana mucheche.
Ichi chirwere, chinozivikanwawo se hyaline membrane syndrome kana yekufema kushungurudzika chirwere, chinokonzera kunetseka mukufema, kufema nekukurumidza, kufema uye miromo yebhuruu neminwe, izvo zvinogona kutouraya.
Muzviitiko izvi, chiremba wevana anokwanisa kuratidza muyedzo weanosvika pakuberekwa kumwana achangoberekwa, anogona kuva echisikigo, akatorwa kubva kumhuka, kana ekugadzira, ayo anogona kutsiva basa remushambadzi anogadzirwa mumapapu uye anotendera kufema kwakaringana. Dzidza zvakawanda nezvezviratidzo uye maitiro ekurapa kwehucheche kufema kunetseka chirwere.