Kupuma
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Sewerani kanema wathanzi: //medlineplus.gov/ency/videos/mov/200020_eng.mp4Kodi ichi ndi chiani? Sewerani kanema wathanzi ndi mawu omvekera: //medlineplus.gov/ency/videos/mov/200020_eng_ad.mp4Chidule
Mapapu awiriwo ndi ziwalo zoyambirira za kupuma. Amakhala kumanzere ndi kumanja kwa mtima, mkati mwa malo otchedwa thoracic cavity. Mimbayo imatetezedwa ndi nthiti. Chingwe cha minofu yotchedwa diaphragm chimatumikira mbali zina za kupuma, monga trachea, kapena cholumikizira mphepo, ndi bronchi, zimatulutsa mpweya m'mapapu. Pomwe nembanemba, ndi madzimadzi am'mapazi, zimalola kuti mapapo aziyenda bwino.
Njira yopumira, kapena kupuma, imagawika magawo awiri osiyana. Gawo loyamba limatchedwa kudzoza, kapena kupumira. Mapapu akapuma, chifundocho chimalumikizana ndikukokera pansi. Nthawi yomweyo, minofu yapakati pa nthiti imalumikizana ndikukwera m'mwamba. Izi zimawonjezera kukula kwa chifuwa cha thoracic ndikuchepetsa kuthamanga mkati. Zotsatira zake, mpweya umalowa ndikudzaza mapapu.
Gawo lachiwiri limatchedwa kutha, kapena kutulutsa mpweya. Mapapu atatuluka, chifundacho chimatsitsimuka, ndipo mphamvu ya mphakoyo imachepa, pomwe kuthamanga komwe kumakhalapo kumawonjezeka. Zotsatira zake, mapapu amalumikizana komanso mpweya umatulutsidwa.
- Mavuto Opuma
- Matenda Am'mimba
- Zizindikiro Zofunika