I-Physiology ye-How Breathing Works

Isiteji sokuqala sokuphefumula , umoya wokungena emaphashini akho, ubizwa ngokuthi ugqozi noma inhalation . Ukuphefumulelwa kwenzeka ngenxa yomsizi omkhulu wokuphefumula obizwa ngokuthi i-diaphragm, elitholakala ngaphansi kwamaphaphu ku-ribcage.

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Imisipha Yokuphefumula

Uma uhumusha, umdwebo kanye nemisipha phakathi kwenkontileka yakho yezimbambo, udala ukucindezela okubi - noma ukuphumula - ngaphakathi kwesikhumba sakho. Ucindezelo olubi ludonsela umoya ophefumulela emaphashini akho.

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Ukukhuphuka kwemikhumbi

Amapulangwe awasho njengama-balloon kodwa ayenziwe nge-spongy, izicubu eziguquguqukayo ezigcwala uma zigcwele umoya. Ngakho-ke, umoya ungena kanjani? Kuya kuphi? Ake silandele umoya womoya kusukela ekuqaleni kuya ekupheleni.

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Ukuthatha Umfutho

Uma usuphefumula, umoya ungena ngekhala lakho nasemlonyeni bese uhamba phansi emqaleni wakho, ngokusebenzisa ibhokisi lakho lezwi bese ungena emthonjeni, owaziwa nangokuthi i-windpipe.

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Ukufaka ama-Lungs

Ukuphela kwe- trachea yakho ihlukanisa ibe yi-Y-shape engezansi bese idala i-bronchi. Umoya udlula nge-right or left bronchus ezinhlangothini zombili zamaphaphu.

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Ukufaka Isihlahla se-Bronchial

Ngaphakathi kwamaphaphu, i-bronchi igxuma ibe yi- bronchioles , efana namagatsha esihlahla.

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Ukuxhuma kuBronchioles

Umoya ugeleza phakathi kwe-bronchioles, eqhubeka ikhula kuze kube yilapho umoya ufinyelela ekupheleni kwamagatsha.

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Ukugcwalisa Amaphakheji Emoya

Emaphethelweni we-bronchioles yizinqola ezincane eziqoqa umoya, okuthiwa i-alveoli.

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I-Gas Exchange

Lapho umoya ufinyelela e- alveoli , i-oksijeni ihlukana ngokusebenzisa i-membrane ibe nemithambo encane yegazi okuthiwa i-capillaries, futhi i-carbon dioxide ihluke egazini lama-capillari aye e-alveoli.

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Ukuyivula yonke into

Isigaba sesibili sokuphefumula, ukuqhuma umoya emaphashini, kubizwa ngokuthi ukuphelelwa yisikhathi noma ukuphefumula . Ngemuva kokuhweba kwe-oksijini ne-carbon dioxide endaweni ye-alveoli, i-diaphragm ixosha futhi ingcindezi enhle ibuyiselwa emgodini wesifuba. Lokhu kugqugquzela umoya osetshenzisiwe uphume emaphashini, kulandela ukuhlanekezela kwendlela esetshenziselwa ukungena emaphashini. Inqubo yonke yokuphefumula iphindwe izikhathi ezingu-10 kuya kwezi-20 ngomzuzu kumuntu omdala onempilo.