Igazi lihamba njani emzimbeni wakho wonke? (Ukuhamba kwegazi) Masithethe ngale nto ngokulula!

Ngaba wakha wazibuza ukuba yintoni ibali elimangalisayo elisemva kwesandi sentliziyo yakho esibethayo, ukubetha okuzivayo xa ubeka isandla sakho esifubeni sakho? Enyanisweni, ngaphakathi emizimbeni yethu, kukho inkqubo yemithambo yegazi, njengenethiwekhi yeendlela kwisixeko esincinci. Yile nto izisa ubomi emzimbeni wethu wonke. Kulungile, makhe sibone ukuba le nto imangalisayo ebizwa ngokuba yi-blood circulation, okanye i-blood circulation , isebenza njani.

Igazi lixabiseke kangakanani?

Sonke siyazi ukuba igazi lixabiseke kangakanani kuthi. Kodwa yintoni kanye kanye eyenziwa ligazi emizimbeni yethu? Cinga ngayo, igazi lifana nenkonzo yokuhambisa ephucukileyo emizimbeni yethu.

Iinkonzo ezinikezelwa ligazi emizimbeni yethu ziyamangalisa ngokwenene. Ngamafutshane:

• Xa siphefumla, ioksijini engena emiphungeni ithwalwa ligazi ukuya kuyo yonke inxalenye encinci yomzimba, kuyo yonke iseli.
• Izondlo esizifumana ekutyeni esikutyayo, oko kukuthi, amandla kunye neevithamini ezifunwa ngumzimba wethu, zisasazwa emzimbeni wonke ligazi.
• Kwakhona, igazi linceda ekuqokeleleni inkunkuma, efana nekhabhoni dayokhsayidi , eveliswa ngumsebenzi weeseli zethu ize iyithwale iye kwiindawo apho ikhutshwa khona emzimbeni (njengemiphunga nezintso).
• Ayipheleli nje apho, kodwa igazi likwathwala iiseli zomzimba ezilwa nezifo emizimbeni yethu kwaye zithumela iikhemikhali ezibalulekileyo ezifana neehomoni apho zifuneka khona.

Ngoko ke, igazi libalulekile ekuxhaseni ubomi bethu nasekugcineni impilo yazo zonke izicwili zomzimba wethu.

Intliziyo yethu - yimpompo emangalisayo esebenza ngokungayekiyo!

Ukuze lithumele eli gazi emzimbeni wonke, lidinga amandla, akunjalo? Kaloku, yiloo nto intliziyo yethu, okanye i-cardiomyocyte, eyenzayo. Lifana nepompo enkulu esebenza ngokungayeki imini yonke, nokuba silele. Ngalo lonke ixesha intliziyo ibetha, igazi elincinci liphonswa emzimbeni wonke. Oku kuyamangalisa kangangokuba ngokomyinge, intliziyo yethu ibetha malunga nekhulu lamawaka amaxesha ngosuku!

Inkqubo yeMithambo - Inethiwekhi yeNdlela yoMzimba

Igazi elimpompa intliziyo alisasazeki nje emzimbeni wonke. Linenkqubo ekhethekileyo yeendlela. Oku sikubiza ngokuba yinkqubo yokujikeleza kwegazi . Kule nkqubo, igazi lithwalwa ngeentlobo ezintathu zeetyhubhu ezinobukhulu obahlukeneyo ezibizwa ngokuba yimithambo yegazi . Njengokuba isixeko sineendlela eziphambili, iindlela ezincinci, kunye neendlela ezingasemva.

Ezi ntlobo zintathu zemithambo yegazi zezi:

1. Imithambo yegazi

2. Imithambo yegazi

3. IiCapillaries

Ngoku masithethe ngolunye nolunye lwezi ntlobo ngokwahlukeneyo.

Imithambo yegazi - iindlela ezithwala imiyalezo esuka entliziyweni ukuya emzimbeni

Imithambo yegazi emikhulu ethwala igazi elicocekileyo, elineoksijini ukusuka entliziyweni ukuya kuzo zonke ezinye izicwili . Ihlala iboniswa ngombala obomvu kwimizobo kuba ineoksijini engaphezulu (kodwa eneneni, lonke igazi libomvu!).

• Umthambo omkhulu noyintloko okhupha igazi entliziyweni yi -aorta . Ufana nombhobho omkhulu ophuma kwitanki yamanzi.
• Ukususela kule mithambo mikhulu, njengamasebe omthi, ikhula ibe yimithambo emincinci ize ihambe emzimbeni wonke. Le mithambo inika igazi ezingalweni, emilenzeni, entloko, nakuwo onke amalungu omzimba.
• Iindonga zemithambo yegazi ziqinile kwaye ziqinile, kwaye ziyanwebeka kuba kufuneka zimelane noxinzelelo kwaye zilawule ukuhamba kwegazi xa intliziyo ipompa igazi ngoxinzelelo oluphezulu.

Cinga ngale mithambo yegazi njengeyona ndlela iphambili yokuhambisa amanzi kwisixeko. Yiyo ethwala amanzi acocekileyo kuwo onke amakhaya nakwiindawo zonke.

IiCapillaries - iziko elincinci lokutshintshiselana

Igazi eliphuma kwimithambo yegazi aliyi ngqo kwimithambo yegazi. Phakathi, kukho inethiwekhi yemithambo yegazi emincinci kakhulu, engatyebanga ngaphezu komsonto weenwele, efikelela kuyo yonke inxalenye encinci yomzimba, yonke iseli. Ezi zizinto esizibiza ngokuba zii-capillaries. Ezi zifana neebhulorho ezincinci ezidibanisa imithambo yegazi kunye nemithambo yegazi.

• Iindonga zezi capillaries zincinci kakhulu - ukuba sithetha ngokuchanekileyo, kukho umaleko weseli omnye kuphela ongqindilili.
• Ezi ndonga zincinci zivumela ioksijini kunye nezondlo ukuba zihanjiswe lula zisuka egazini ziye kwizicwili, kwaye i-carbon dioxide kunye nezinye izinto ezilahlwayo zibuyiselwe lula egazini zisuka kwizicwili.
• Ngamafutshane, la ma-capillaries kulapho kwenzeka khona ukutshintshiselana kwenyani . Kufana nevenkile encinci, apho iimpahla zitshintshiselwa khona.

Le network ye-capillary ilungile kangangokuba kuthiwa akukho seli enye emzimbeni wethu ekude kunenye yezi capillaries ngaphezu kwe-millimeter. Zisasazeke kakhulu emzimbeni wonke.

Imithambo - Iindlela ezithwala igazi eligcwele inkunkuma zibuyele entliziyweni

Ngoku, emva kokubonelela ngeoksijini kunye nezondlo kwizicubu kunye nokuqokelela i-carbon dioxide kunye nemveliso yenkunkuma kuzo, igazi kufuneka libuyiselwe entliziyweni. Loo msebenzi ubalulekileyo wenziwa luhlobo lwemithambo yegazi ebizwa ngokuba yi-vein. Ezi zihlala ziboniswa ngombala oluhlaza okwesibhakabhaka kwimizobo kuba eli gazi lineoksijini encinci.

• Imithambo emincinci, eqala kwi-capillaries, idibana kancinci kancinci ukuze yenze imithambo emikhulu, ekugqibeleni izisa igazi entliziyweni. Njengokuba imilambo emincinci idibana ukuze yenze umlambo omkhulu.
• Ngokwesiqhelo, igazi elineoksijini encinci kunye nekharbon diokside eninzi lidlula koku. (Kodwa kukho into enye eyahlukileyo koku, leyo yimithambo ehambisa igazi elicocekileyo lisuka emiphungeni liye entliziyweni - ibizwa ngokuba yimithambo yemiphunga. Iyinkimbinkimbi kancinci, siza kuthetha ngayo kamva).
• Mhlawumbi uqaphele ukuba ngamanye amaxesha, ezingalweni okanye emilenzeni yakho, imithambo ibonakala iluhlaza okwesibhakabhaka ngaphezulu kolusu. Ezo yimithambo. Imithambo ifumaneka kancinci kancinci kunemithambo.
• Umthambo omkhulu othwala igazi ukusuka entlokweni nasezingalweni zethu ukuya entliziyweni ubizwa ngokuba yiSuperior Vena Cava . Umthambo ongaphantsi weVena Cava uthwala igazi ukusuka esiswini nasemilenzeni . Le mithambo mibini mikhulu iqokelela igazi elingcolileyo entliziyweni.
• Iindonga zemithambo zincinci kancinci kwaye aziguquguquki kangako kunezo zemithambo kuba igazi lihamba ngemithambo xa uxinzelelo luphantsi.
• Kukho enye into ebaluleke kakhulu kwimithambo yegazi. Loo nto ke ziivalvu.Ezi zifana neengcango ezivula indlela enye kuphela. Ezi valve zinceda igazi ukuba lihambe kwicala elinye kuphela, lisiya entliziyweni, kwaye lithintele ukuba lingabuyeli umva. Ezi valve ziluncedo kakhulu ekunyuseni igazi nxamnye nomxhuzulane, ingakumbi kwiindawo ezifana nemilenze.

Uyazi ukuba le nkqubo yegazi ithatha ixesha elingakanani?

Ubungenakukholelwa, kodwa ukuba ubunokolula yonke imithambo yegazi, imithambo yegazi, kunye nee-capillaries esithethe ngazo, zingaba ngaphezu kweekhilomitha ezingama-60,000 (iikhilomitha ezingama-96,500) ubude ! Oko kwanele ukuhambahamba ihlabathi ngaphezulu kwesibini! Akumangalisi na ukuba sinenethiwekhi ende kangaka yeendlela ngaphakathi emizimbeni yethu?

Ukuhamba kwegazi rhoqo kunye nendima yentliziyo

Ngale ndlela, igazi emzimbeni wethu aliyeki ukugeleza umzuzwana omnye. Le nkqubo iyaqhubeka ngelixa sivukile, silele, sibaleka, kwaye sisitya. Ingcambu yako konke oku kukumpompa kwentliziyo yethu okungapheliyo. Intliziyo isebenza njengenjini yale nkqubo yonke yokujikeleza kwegazi.

Kutheni olu hambo lwegazi lubaluleke kangaka kuthi?

Ngoku mhlawumbi uyaqonda ukuba oku kuhamba kwegazi, okanye ukujikeleza kwegazi, kubaluleke kangakanani emizimbeni yethu.

Kalula nje:

• Ukuze yonke iseli encinci emzimbeni wethu iphile kwaye isebenze, olu hambo lwegazi kufuneka lwenzeke ngokuchanekileyo .
• Iiseli zethu azinakusebenza ngaphandle kweoksijini kunye nezondlo, kanye njengokuba imoto ingenakusebenza ngaphandle kwepetroli.
• Kwakhona, ukuba inkunkuma ayisuswa, iiseli zinokonakala zize zife.
• Ngamanye amaxesha, xa kuvela iingxaki kule mithambo yegazi, umzekelo, ukuba ivalekile (ngokugcwala kwezinto ezifana ne-cholesterol) okanye ukuba ukuqina kwayo kwehla, ukuhamba kwegazi kunokuphazamiseka kwaye izifo ezahlukeneyo zinokuvela. Ezi zinokukhokelela nakwiimeko ezinzima ezifana nokuhlaselwa yintliziyo kunye nokubetha.

Yingakho ukugcina ukujikeleza kwegazi okunempilo kubaluleke kakhulu kwimpilo yethu iyonke.

Izinto ezibaluleke kakhulu ekufuneka sizikhumbule

Ngoko ke, ngoku uyaqonda ukuba le nkqubo yokujikeleza kwegazi emizimbeni yethu iyinkimbinkimbi, iyamangalisa kwaye ibaluleke kangakanani.

Intliziyo yethu, ilungu elincinci, isoloko ipompa igazi kule nethiwekhi inkulu yemithambo yegazi, inika ubomi kuyo yonke iseli emzimbeni wethu. Lo gama nje le nkqubo isebenza kakuhle, sisempilweni kwaye siphilile.

Ngoko ke, kubaluleke kakhulu ukunyamekela intliziyo yethu kunye nale nkqubo yokujikeleza kwegazi, oko kuthetha ukulandela imikhwa emihle efana nokutya ukutya okunempilo, ukuzilolonga, kunye nokuphepha ukutshaya. Kuba le nkqubo imangalisayo yiyo esigcina siphila!

Igazi , igazi, intliziyo, ukujikeleza kwegazi, imithambo yegazi, imithambo yegazi, ii-capillaries, ioksijini, izondlo