Umatshini omangalisayo emzimbeni wethu: Masifunde ngeNtliziyo kunye neNkqubo yokujikeleza kwegazi!

Ngaba wakha wazibuza ukuba sithini eso sandi esithi “dig dig… dig dig…” xa ubeka isandla sakho esifubeni sakho? Ngamanye amaxesha, emva kokubaleka nokudlala, esi sandi siya sivakala kakhulu, akunjalo? Kaloku, lo ngowona matshini umangalisayo nongenamsebenzi emzimbeni wethu, oko kukuthi, indlela intliziyo yethu esebenza ngayo. Ngaphandle kwale ntliziyo, kunye nenkqubo yemithambo edibana nayo kwaye ithwala igazi emzimbeni wonke, ngenene besingenakukwazi ukuphila nomzuzwana omnye. Ngoko ke, namhlanje, masithethe ngentliziyo, ebaluleke kakhulu kubomi bethu, kunye nenkqubo yokujikeleza kwegazi. Makhe ndikuchazele ngendlela elula kakhulu, ngendlela onokuyiqonda.

Yintoni intliziyo? Eyona mpompo inamandla emzimbeni wethu!

Ngamafutshane, intliziyo yakho ifana nempompo eyenziwe ngenyama esebenza ngokungayekiyo . Ifana nenjini yamanzi encinci, kodwa isebenza ngokumangalisayo ngakumbi! Intliziyo yomntu omdala oqhelekileyo ibetha phakathi kwezihlandlo ezingama-60 ukuya kwi-100 ngomzuzu. Ibetha kancinci xa ulele, kwaye ikhawuleza kancinci xa uzilolonga, yiloo nto kanye eyenzekayo.

Khawucinge nje, ukususela ngomhla wokuzalwa kwakho, le ntliziyo incinci ibisebenza kuwe ngaphandle kokuphumla, nokuba ulele okanye uvukile! Hayi indlela okumangalisa ngayo oko?

Ngalo lonke ixesha lokubetha kwentliziyo, intliziyo ipompa igazi emzimbeni wonke. Ayilogazi kuphela, kodwa eli gazi lithwala ioksijini , ebaluleke kakhulu ebomini. Lifana nesithuthi esihambisa ukutya nokusela.

Isebenza njani intliziyo? Imfihlo encinci!

Kulungile, masibone ukuba kwenzeka ntoni ngaphakathi kule ntliziyo. Oku kufana nebali elincinci.

1. Okokuqala, intliziyo ipompa igazi elinomoya-mpilo omninzi kuyo yonke inxalenye encinci yomzimba wethu, ebizwa ngokuba ziiseli (njengeebhloko ezincinci zokwakha ezenza imizimba yethu). Ezi seli ziyidinga ngokwenene ioksijini ukuze zisebenze kwaye ziphile.

2. Nje ukuba ioksijini ifike kwiiseli, igazi libuyela entliziyweni. Kodwa ngoku igazi liphantsi kwioksijini, kwaye endaweni yoko liqulethe inkunkuma engaphezulu evela kwiiseli, ingakumbi i-carbon dioxide .

3. Ngoku intliziyo ithumela eli gazi lingenawo umoya-mpilo, lizele yi-carbon dioxide emaphashini ukuze licocwe. Kufana nokulithumela kwindawo yokuhlamba impahla.

4. Emiphungeni, ikharbon diokside egazini iyasuswa ize ithathelwe indawo yioksijini entsha. Yile oksijini esiyifunxayo xa siphefumla.

5. Ngoku, igazi elicocekileyo nelineoksijini libuyela entliziyweni.

6. Emva koko intliziyo iphinda ipompe elo gazi emzimbeni wonke.

Lo mjikelo uqhubeka ngokuqhubekayo, ungenasiphelo. Ufana nesangqa esijikelezayo. Khawucinge ukuba bekuya kwenzeka ntoni ukuba oku bekungaphela nokuba ngumzuzwana nje! Yiyo loo nto intliziyo yenye yezona zitho zixabisekileyo emzimbeni wethu.

Ngoko ke yintoni le nkqubo yokujikeleza kwegazi? Inethiwekhi yeendlela ezihamba emzimbeni wonke!

Kulungile, sithethe ngentliziyo. Ngoku makhe sibone ukuba igazi elimpontshwa yintliziyo lihamba njani emzimbeni wonke. Yiloo nto siyibiza ngokuba yinkqubo yokujikeleza kwegazi . Oku kufana nothungelwano lweendlela kwilizwe lethu. Zonke iindlela ezinkulu, iindlela ezincinci, kunye neendlela ezingasemva ziyadibana ukuze zenze le nkqubo. Ezi ndlela sizibiza ngokuba yimithambo yegazi okanye imithambo yegazi .

Kukho iintlobo ezimbini eziphambili zale mibhobho yegazi:

• Imithambo yegazi: Le yimithambo yegazi emikhulu ethwala igazi lisuka entliziyweni. Le mithambo yegazi ithwala igazi elicocekileyo nelicebileyo ngeoksijini elimpontshelwa yintliziyo ukuya kuzo zonke iindawo zomzimba. Iindonga zayo zityebile kancinci kuba kufuneka zimelane noxinzelelo oluphezulu lwegazi eliphuma entliziyweni.
• Imithambo: Le yimithambo yegazi eqokelela igazi kwiindawo ezahlukeneyo zomzimba ize ilibuyisele entliziyweni . Eli gazi lidla ngokuba neoksijini ephantsi kwaye linekhabhoni dayoksayidi eninzi kunye nezinye izinto ezilahlwayo.

Enye imfihlo encinci: IiCapillaries

Phakathi kwemithambo yegazi nemithambo yegazi, kukho uthungelwano lwemithambo yegazi emincinci necolekileyo, engatyebanga ngaphezu komsonto weenwele. Ezi zibizwa ngokuba zii-capillaries . Zifana neendlela ezincinci ezisecaleni ezikhokelela kwiindlela eziphambili eziya ezindlwini. Ioksijini kunye nezondlo ziyatshintshiselana phakathi kweeseli, kwaye imveliso engcolileyo iqokelelwa kwiiseli iye egazini ngezi capillaries. Oku kuthetha ukuba le yeyona ndawo ibalulekileyo yokutshintshiselana.

Yeyiphi inkonzo esiyifumanayo kule nkqubo?

Iinkonzo ezinikezelwa yintliziyo kunye nenkqubo yokujikeleza kwegazi zininzi kakhulu. Jonga apha:

1. Ubonelelo lweoksijini: Njengoko besesitshilo, yonke iseli emzimbeni wethu ifuna ioksijini ukuze iphile kwaye isebenze. Le oksijini inikwa iseli nganye yile nkqubo, ngokungathi iziswa ekhaya.

2. Ukusasazwa kwezondlo: Ukutya esikutyayo kunika imizimba yethu amandla nokukhula. Nje ukuba oku kutya kugaywe, izondlo – ezinje ngeevithamini, iiproteni, kunye namafutha – zithwalwa emzimbeni wonke ukuya apho zifunwa khona ligazi.

3. Ukuhambisa iiHormone : IiHormone zizithunywa zeekhemikhali ezilawula yonke imisebenzi emizimbeni yethu. Umzekelo, ezi hormone zichaphazela izinto ezifana nendlela esikhula nesiphuhla ngayo, kunye nendlela esilawula ngayo iimvakalelo zethu . Ezi hormone zikwathuthwa zisiwe kwiindawo ezifunekayo zomzimba ligazi.

4. Ukususa inkunkuma: Xa iiseli zethu zisebenza, zivelisa inkunkuma. Kufana nomsi ophuma kumzi-mveliso. Enye yenkunkuma ephambili yi-carbon dioxide. Igazi lithatha le nkunkuma kwiiseli lize liyithwale liye kwizitho zomzimba (ezifana nemiphunga nezintso) ezizisusa emzimbeni.

Kubaluleke kakhulu ukuba olu hambo lwegazi luhlale luhamba calanye . Lufana nendlela "ehamba calanye". Kukho iindlela ezahlukeneyo zegazi elineoksijini, kunye neendlela ezahlukeneyo zegazi elinekhabhoni dayoksayidi. Ngaphandle koko, yonke into inokudideka kwaye ibangele isiphithiphithi esikhulu, akunjalo?

Ngaba sifanele siyikhusele le nkqubo imangalisayo?

Ewe, ewe! Khawucinge ukuba bekuya kuba nzima kangakanani ukuba ipompo yamanzi kunye nemibhobho yamanzi endlwini yakho iyaphuka? Kunjalo nangentliziyo kunye nemithambo yegazi. Ukuba ezi zinto azisebenzi kakuhle, umzimba wethu wonke uya kuba sengxakini.

Ngoko ke, luxanduva lwethu ukugcina le nkqubo ixabisekileyo isempilweni.Izinto ezilula ezifana nokutya ukutya okunesondlo, ukuzilolonga imihla ngemihla, ukuphepha imikhwa emibi njengokutshaya , kunye nokuba nolonwabo zinokunceda kakhulu ekugcineni intliziyo yethu kunye nenkqubo yokujikeleza kwegazi isempilweni. Ukuba unezifo ezithile, ezifana nesifo seswekile okanye uxinzelelo lwegazi oluphezulu , kubalulekile ukuzilawula kakuhle ngokweengcebiso zonyango.

Masikhumbule nje into ebesithetha ngayo namhlanje?

Kulungile, ke, nazi ezona zinto zibalulekileyo ekufuneka uzikhumbule koko sithethe ngako namhlanje:

• Intliziyo ngumatshini omangalisayo opompa igazi kuyo yonke imizimba yethu, osebenza rhoqo.
• Ngentliziyo nganye, igazi elinomoya-mpilo omninzi lihamba emzimbeni wonke, emva koko igazi elinomoya-mpilo omninzi libuyela entliziyweni, licocwe yimiphunga, kwaye uhambo luqala kwakhona. Lo mjikelo uyaqhubeka.
• Inkqubo yokujikeleza kwegazi yinethiwekhi yemithambo yegazi (imithambo yegazi, imithambo yegazi, ii-capillaries) ezithwala igazi lisuka entliziyweni ukuya nokubuya emzimbeni.
• Le nkqubo kulapho iiseli zomzimba wethu zifumana khona ioksijini, izondlo, kunye neehomoni , kwaye zisusa inkunkuma kwiiseli.
• Lonke olu nkqubo lusebenza kakuhle kakhulu, njengeendlela eziya kwicala elinye .

Ngoko ke, uyibonile indlela emangalisayo nebaluleke ngayo le ntliziyo kunye nendlela igazi elihamba ngayo emzimbeni wethu. Ngoko ke, ukuqaphela oku kunye nokuzama ukugcina le nkqubo isempilweni kuluncedo kakhulu kuwe. Ukuba uneminye imibuzo, ungabuza ugqirha ngaphandle koloyiko.