Intliziyo lelinye lawona malungu abaluleke kakhulu Yintoni esinayo ngaphakathi komzimba wethu. Itholakala esifubeni sethu esisifuba kunye imi phakathi kwemiphunga emibini. Ubungakanani bayo bufana nenqindi lethu kwaye ihlala inobunzima malunga ne-300 yeegramu, leyo yomntu omdala inokufikelela kwi-450 g.
Intliziyo inomsebenzi obaluleke kakhulu kwaye kufuneka ngokuqhubekayo ukumpompa igazi kuzo zonke iimbombo zomzimba wethu kwaye ukuze yenze njalo kufuneka sicinge ukuba inokuxhathisa okukhulu kwaye ihlala ixesha elide. Kungenxa yoko le nto kufuneka siyikhathalele imeko yakho, ngokwenza umthambo ngokulingeneyo kunye ukutya okufanelekileyo.
Yintoni intliziyo?
Lilungu lomngxunya elilingana nenqindi kwaye limile okwepere Ifumaneka phakathi kwemiphunga emibini, ngaphakathi kwembambo. Indawo ebekwe kuyo ithambekele kancinane ngasekhohlo kunye nenxalenye ejonge ezantsi.
Owona msebenzi uphambili wentliziyo kukwenza ngokumpompa igazi kwikona nganye yomzimba. Koku kuthunyelwa kwegazi kuyakwenza oko ngohambo lokunciphisa kunye izakulayishwa ngeoksijini ecocekileyo ezifunyenwe kwimiphunga. Eli gazi liya kuhamba ngemibhobho ebizwa ngokuba yimithambo kunye Iya kusasaza le oksijini kuzo zonke iiseli, izicwili kunye namalungu.
Igazi liphela njani kwioksijini? kufuneka ibuyele emiphungeni ukuze ihlawuliswe ngeoksijini. Izakufikelela emiphungeni kwaye iya kucocwa kuqala, kuba ilayishwe inkunkuma, kwaye iya kugcwalisa ngeoksijini ukuze idlule entliziyweni kwakhona kwaye iqale umjikelo wayo kwakhona.
Njengokungena kufuneka uyazi ukuba intliziyo izivumelwano phakathi kwamashumi amahlanu ananye amaxesha ngomzuzu xa siphumlile, ngaphandle kokuzilolonga. Ukufikelela phantse kuma-XNUMX amaxesha ngosuku. Y Iyakwazi ukumpompa malunga ne-10.000 leelitha zegazi ngosuku emzimbeni wonke. Sinee-5 zeelitha zegazi emzimbeni kwaye ziya kuba zezazo ezihlala zijikeleza zisuka entliziyweni ziye emizimbeni yethu. Kukho amaxesha amaninzi kangangokuba igazi liya kujikeleza entliziyweni yethu kangangokuba ezo litha zisi-5 ziguqulela kwezo zeelitha ezingama-10.000 XNUMX ngosuku.
Imisebenzi yayo ngokweenkcukacha
Ngalo mzobo sikubonisa wona, kuya kuba lula kakhulu ukwazi ukuba iintliziyo zethu zisebenza njani inyathelo ngenyathelo.
- Inxalenye enemibala ebomvu ligazi eliza kulayishwa ngeoksijini. Ke ngoko, igazi elivela kwimiphunga kunye neoksijini yalo Ngenisa intliziyo ngemithambo yemiphunga yasekunene nasekhohlo.
- Baza kungena kwi-atrium yasekhohlo kwaye bahambe baye kwi-ventricle yasekhohloUkusuka apho iya kuqhutywa nge-aorta ukuze igazi lihanjiswe kwiikona zonke zomzimba.
- Igazi ekubuyeni kwalo izakubuya ngaphandle kweoksijini nge-vena cava ephezulu kunye ne-vena cava engaphantsi Ukungena nge-atrium yasekunene, ukudlula uye kwi-ventricle yasekunene kunye nokushiya kuhanjiswe ngumthambo we-pulmonary wasekhohlo kunye nomthambo we-pulmonary wasekunene.
- Eli gazi libuyela emiphungeni ukuze lihlawuliswe ngeoksijini kwaye uqale umjikelo ofanayo kwakhona.
Umnqweno wentliziyo
- Intliziyo yenza isandi xa ubetha, into efana ne "ducta-duc".
- Njengoko besesitshilo intliziyo unokubetha phakathi kwe-50 kunye ne-100 beats ngomzuzu kwaye kwisibetho ngasinye kuqhuba iimililitha ezingama-80 zegazi. Xa sisenza umthambo, intliziyo ibetha kakhulu kwaye igazi libaleka kakhulu emzimbeni wonke.
- Intliziyo ibetha kwinqanaba elikhulu kude kube Amaxesha angama-30 ezigidi ngonyaka.
- Intliziyo yokuqala yayifakelwa ngoDisemba 3, 1967 Ugqirha wase Mzantsi Afrika UmKristu Barnard.
- Eyona ntliziyo inde isindileyo efakelweyo yayi Iminyaka engama-22, iinyanga ezili-10 neentsuku ezingama-24.
- Umphunga wasekhohlo mncinci kakhulu kunasekunene. Kungenxa yokuba ishiya indawo yentliziyo.