Igazi lihamba njani emzimbeni wakho wonke? (Ukuhamba kwegazi kunye neNkqubo yokujikeleza kwegazi) Masifumanise ngendlela elula!

Ngaba wakha wema wazibuza ukuba le nto ibizwa ngokuba ligazi ihamba njani emizimbeni yethu ngaphandle kweengxaki? Ayimangalisi na? Umzuzwana ngamnye intliziyo yethu ibetha, le mpompo incinci ihambisa igazi kwinkqubo yeetyhubhu emizimbeni yethu. Oku sikubiza ngokuba yi- 'Cyclery System' . Ezi tyhubhu zifana neetyhubhu zerabha eziguquguqukayo ezithwala igazi ukuya kuwo onke amalungu amancinci omzimba. Kulungile, masithethe ngale nto ngokweenkcukacha ezithe vetshe?

Kutheni igazi lixabiseke kangaka kuthi?

Igazi liyinxalenye ebalulekileyo yobomi bethu. Khawucinge nje, leli gazi linceda zonke iiseli ezincinci kunye nezicwili zomzimba wethu ukuba ziphile kwaye zisebenze. Nazi izinto eziphambili ezenzeka ngegazi:

• Igazi lithwala ioksijini kunye nezondlo ezibalulekileyo kwizicubu zomzimba wethu, njengokuzisa ukutya neziselo emakhayeni ethu.
• Igazi likwanceda ekususeni i-carbon dioxide engafunekiyo kunye neminye inkunkuma eqokelelana kwiithishu ize iyikhuphe emzimbeni, njengokuba ikhupha inkunkuma ekhayeni lakho.
• Ngenxa yoko konke oku, igazi libalulekile ekuxhaseni ubomi bethu nasekugcineni lonke ilungu lomzimba wethu lisempilweni .

Uyaqonda na ukuba igazi lixabiseke kangakanani?

Kukho iintlobo ezintathu eziphambili zemithambo yegazi!

Kukho iintlobo ezintathu eziphambili zemithambo yegazi ezinceda ukuhambisa eli gazi emizimbeni yethu. Njengokuba iindlela zineendlela eziphambili, iindlela ezincinci, kunye neendlela ezisecaleni.

1. Imithambo yegazi – imithambo yegazi ethwala igazi elicocekileyo lisuka entliziyweni

Imithambo yegazi yimithambo yegazi ethwala igazi elinomoya-mpilo omninzi (ngokuqhelekileyo liboniswa ngombala obomvu kwimizobo) kunye nezondlo ezivela entliziyweni yethu ukuya kuzo zonke ezinye izicubu emzimbeni. Cinga ngayo ngathi intliziyo yimpompo yamanzi, kwaye imithambo yegazi ifana nemibhobho emikhulu ethwala amanzi acocekileyo esuka kuloo mpompo ukuya egadini yonke.

• Le nkqubo yemithambo yegazi iqala nge-aorta, umthambo wegazi omkhulu ophuma entliziyweni. Ifana nombhobho omkhulu ophuma kwitanki yamanzi ephambili.
• Ezi zithwala igazi elineoksijini eninzi ukusuka entliziyweni ukuya kuzo zonke izicwili zomzimba.
• Njengoko usuka entliziyweni, le mithambo yegazi iyahlukana ibe ngamasebe, incipha kancinci kancinci. Njengomlambo omkhulu ohlukana ube yimijelo emincinci.

Ngoko ke, umsebenzi oyintloko wemithambo yegazi kukusasaza igazi elilungileyo emzimbeni wonke .

2. IiCapillaries – ezona ndawo zincinci zokutshintshiselana

IiCapillaries zinethiwekhi yemithambo yegazi emincinci kakhulu, emincinci kakhulu. Ezi zidibanisa imithambo yegazi emibini emikhulu, imithambo yegazi kunye nemithambo yegazi. Zicinge njengoluhlu lwezitrato ezincinci eziphakathi kweendlela ezimbini ezinkulu.

• Iindonga zezi capillaries zincinci kakhulu, zifana ne-mesh.
• Ezi ndonga zincinci zivumela izinto ezilungileyo ezifana neoksijini kunye nezondlo ukuba zidlule zisuka egazini ziye kwiiseli zezicubu, kwaye izinto ezingafunekiyo ezifana nekhabhoni dayoksayidi kunye nemveliso emdaka eveliswa kwiiseli zezicubu ukuba zibuyele egazini . Kufana nokutshintshiselana ngeempahla emarikeni.

Enyanisweni, olu tshintsho lubalulekileyo kwinqanaba leeseli zomzimba lwenzeka ngezi capillaries zincinci. Zincinci kakhulu, eneneni, kangangokuba ezinye capillaries zincinci kuneenwele zethu! Kodwa umsebenzi eziwenzayo mkhulu, akunjalo?

3. Imithambo yegazi – imithambo yegazi ethwala igazi elingcolileyo ibuyele entliziyweni

Imithambo yegazi yimithambo yegazi ethwala igazi eliphelelwe yioksijini, okanye "elingcolileyo" (elidla ngokuboniswa ngombala oluhlaza okwesibhakabhaka kwimizobo) lisuka kwizicubu zomzimba wethu lisiya entliziyweni. Lifana nenkqubo yemibhobho eqokelela amanzi asetyenzisiweyo ize iwabuyisele etankini.

• OkuImithambo yegazi ithwala igazi elineoksijini encinci kunye nekharbon dioksayidi eninzi ukusuka kwizicubu zomzimba ukuya entliziyweni.
• Njengoko le mithambo isondela entliziyweni, iyadibana ize ibe mikhulu. Njengemijelo emincinci idibana ukuze yenze umlambo omkhulu.
• Ekugqibeleni, umthambo omkhulu obizwa ngokuba yi-'superior vena cava' uzisa igazi elivela entloko nasezingalweni entliziyweni. Ngokufanayo, umthambo omkhulu obizwa ngokuba yi-'inferior vena cava' uzisa igazi elivela esiswini nasemilenzeni entliziyweni.

Ngoko ke umsebenzi oyintloko wemithambo kukubuyisela igazi elinokungcola okuqokelelene emzimbeni entliziyweni kwaye liyiqondise ekuhlanjululweni .

Ingakanani le nkqubo yemithambo yegazi kunokuba ucinga?

Ngoku ungabona indlela eyinkimbinkimbi ngayo inkqubo yemithambo yegazi, imithambo yegazi, kunye nee-capillaries emizimbeni yethu. Ubusazi na ukuba yonke inkqubo yemithambo yegazi - oko kukuthi, yonke imithambo yegazi, imithambo yegazi, kunye nee-capillaries zidibene - inobude obungaphezulu kweekhilomitha ezingama-60,000 ! Igazi lethu lihambahamba kule nkqubo inkulu rhoqo. Lifana nothungelwano lweendlela kwisixeko, iimoto zihamba zibuya zibuye ngalo lonke ixesha. Ngoko ke lowo unceda ekupompeni lonke eli gazi emzimbeni yintliziyo yethu. Nguye oyintloko emva kwale nkqubo yonke.