I-Physiology yeMisebenzi yokuPhepha

Isigaba sokuqala sokuphefumla , umoya wokungenisa umoya emiphakeni yakho, ubizwa ngokuba ngumphefumlelwe okanye ukuphuza . Ukuphefumlelwa kwenzeka ngenxa yomsizi omkhulu ophefumulayo obizwa ngokuba yi-diaphragm, efumaneka phantsi kwemiphunga kwi-ribcage.

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Imisipha Yokuphefumula

Xa utyumba, i- diaphragm kunye neemisipha phakathi kwekhontrakthi yakho, zidala uxinzelelo olubi - okanye u-vacuum - ngaphakathi kwesibindi sakho. Uxinzelelo olubi ludonsa umoya ophefumulayo emiphakeni yakho.

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Imingxube yeeLung

Imipu ayifaki njengama-ballo kodwa ayenziwe nge-spongy, izicubu eziguquguqukayo ezichaphazelayo xa zizaliswa ngumoya. Ngoko, umoya ungena njani? Uya kuphi na? Masilandele umoya womoya ukususela ekuqaleni ukuya ekupheleni.

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Ukuthabatha

Xa uthatha umoya, umoya uya kungena ngeempumlo kunye nomlomo uze uhambe phantsi komqala wakho, ngebhokisi lakho lezwi kunye ne-trachea, eyaziwa ngokuba yi-windpipe.

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Ukungena kwiiNgqungquthela

Ukuphela kweetrachea yakho iyahlula kwi-Y-shape engezantsi kwaye idala i-bronchi. Umoya udlula ngaphaya kwe-right or left bronchus kumacala omabini emiphaphu.

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Ukungena kwisihlahla seBronchial

Ngaphakathi kwemiphaphu, i-bronchi igxina kwi- bronchioles , ekhangeleka njengamasebe omthi.

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Ukuxhuma kwiBronchioles

Umoya uhamba nge-bronchioles, eqhubeka ihamba encinci de ize ifikelele kwimiphetho yamasebe.

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Ukuzalisa Iiphakhethi Zomoya

Eziphelweni ze-bronchioles ziziqoqo zeepokotshi ezincinci eziqokelela umoya, ezibizwa nge-alveoli.

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Gash Exchange

Xa umoya ufinyelela kwi- alveoli , i-oksijeni iyahlula kwi-membrane ibe yimithambo encinane yegazi ebizwa ngokuthi i-capillaries, kunye ne-carbon dioxide ephuma kwigazi kwi-capillaries kwi-alveoli.

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Ukulikhupha konke

Isigaba sesibini sokuphefumla, ukuvuthela umoya emiphakeni, kuthiwa iphelelwa yisikhathi okanye iphefumlelwe . Emva kokuba i-oksijeni kunye ne-carbon dioxide yorhwebo ehlala kwi-alveoli, i-diaphragm iyancipha kwaye ixinzelelo elihle libuyiselwa kwisigubungelo sesifuba. Oku kukunyusa umoya osebenzayo emiphakeni, emva kokutshintsha kwendlela eyawusebenzisa ngayo kwimiphunga. Inkqubo yonke yokuphefumula iphindwaphindwa kathathu ukuya kuma-20 ngamazuzu ngomzuzu omdala.