Kusinthanitsa gasi

Zamkati

• Chidule

Chidule

Mpweya umalowa mthupi kudzera mkamwa kapena mphuno ndikusunthira mwachangu kumphako, kapena kukhosi. Kuchokera pamenepo, imadutsa m'mphako, kapena bokosilo, ndikulowa mu trachea.

Trachea ndi chubu cholimba chomwe chimakhala ndi mphete za cartilage zomwe zimalepheretsa kuti zisagwe.

M'mapapu, nthambi za trachea zimakhala bronchus kumanzere ndi kumanja. Izi zimagawika m'magulu ang'onoang'ono komanso ang'onoang'ono otchedwa bronchioles.

Ma bronchioles ang'onoang'ono amatha m'matumba ang'onoang'ono amlengalenga. Izi zimatchedwa alveoli. Amakwiyira munthu akamapumira komanso amatulutsa mpweya munthu akatulutsa mpweya.

Nthawi yosinthana ndi mpweya mpweya umasunthira kuchokera m'mapapu kupita kumitsempha yamagazi. Nthawi yomweyo carbon dioxide imachoka m'magazi kupita m'mapapu.Izi zimachitika m'mapapu pakati pa alveoli ndi mitanda ing'onoing'ono yamagazi yotchedwa capillaries, yomwe ili pamakoma a alveoli.

Apa mukuwona ma cell ofiira ofiira akudutsa ma capillaries. Makoma a alveoli amagawana nembanemba ndi ma capillaries. Ndi momwe aliri pafupi.

Izi zimapangitsa mpweya wa oxygen ndi kaboni dayokisaidi kufalikira, kapena kuyenda momasuka, pakati pa dongosolo la kupuma ndi magazi.

Mamolekyu a oxygen amalumikizana ndi maselo ofiira ofiira, omwe amabwerera kumtima. Nthawi yomweyo, mamolekyulu a kaboni dayokisaidi omwe ali mu alveoli amawombeledwa kunja kwa thupi nthawi yotsatira munthu akatulutsa mpweya.

Kusinthanitsa kwa gasi kumalola kuti thupi libwezeretse mpweya ndikuchotsa kaboni dayokisaidi. Kuchita zonsezi ndikofunikira kuti mupulumuke.

• Mavuto Opuma
• Matenda Am'mimba