Izitsha enempilo igazi: ukuphila ngaphandle isifo senhliziyo

Igazi emzimbeni ukhonza njengelungu isici yokuxhuma somsebenzi esibalulekile kwengqamuzana ngayinye isitho ngasinye. ukuhamba kwayo emzimbeni libizwa kwegazi, lapho i-oksijini, ama-hormone nemithi izakhi fed zonke izicubu kanye izitho, futhi ukusuka lapho ngosizo imikhiqizo okukhiphayo yokubola imfucuza izinto. Ngaphezu kwalokho, igazi lucwaningo thermoregulation yomzimba, futhi ivikela ke kusukela amagciwane ayingozi. Ukuqhubeka ukunikeza imithambo yegazi kwegazi futhi inhliziyo ezakha isimiso sokujikeleza kwegazi, wonke kabani imisebenzi lokwelekelela esihlelwe.

imithambo yegazi, jikelele ogama ubude kuhlanganisiwe 100 ayizinkulungwane. Km, lihlaba umzimba womuntu ufana web-giant, ukuvumela wonke amangqamuzana nomoya-mpilo. Igazi ukugeleza kwenzeka ngqo ngokusebenzisa lemithambo emithanjeni capillary.

Umthambo - a izitsha thick-ngabafaka letiphakela ukugeleza kwegazi kuvela inhliziyo. Ziyakwazi nezimo kakhulu futhi, kuya ngevolumu wegazi akhishwa inhliziyo banganwebisa noma inkontileka. Imithambo athwala igazi ahlanganiswe-mpilo imuncwe, okungukuthi 'okuhlanzekile'. Vienna, ngokuphambene ukukhiqiza igazi outflow ezigcwele-carbon dioxide. Ngokusho kwakhe igazi amabombo inhliziyo. Esebenzisa umfanekiso izindonga kancane obukhulu ukudlula emithanjeni yegazi. Capillary kukhona izitsha kulencane igazi enodonga mncane kakhulu okuyothi ngalo ukubuya wegazi ku amaseli mpilo nezakhi nesikhutha ndima futhi exchange ngemikhiqizo yegazi kuseli.

Elikhulu kunawo wonke (e cross-section ifinyelela 5 cm) igazi isitsha emzimbeni womuntu - elikuyi-aorta okuyinto amagatsha ku imithambo yegazi - I-arteriole (emiphongolweni emincane), nalabo yena, ngesikhathi liphuma kuma-capillary.

Umfutho ukuhamba kwegazi kuyinto ukushaya kwenhliziyo. Ukuhamba kwegazi kwenzeka emibuthanweni ezimbili: ezincane (yamaphaphu) kanye kwegazi, ukugeleza okuqhubekayo. Lapho sihamba ngemoto emgwaqweni indilinga lencane sesikhululiwe kusuka carbon dioxide futhi ngaphansi anomoya-mpilo. Umbuthano esikhulu, kunalokho, kunikeza ithwala umoya-mpilo nezakhi ukuthatha carbon dioxide futhi imfucuza imikhiqizo.

imithambo yegazi Human ukudlala indima eqakathekileko izinqubo ezibalulekile zomzimba. Ababona ngeze ngokuthi "ukuphila imithambo": okuhlanganisa ndawonye cishe zonke emangqamuzaneni omzimba, bona ukuqinisekisa umsebenzi walo obunobunye.

Ososayensi bathi kwakheka imithambo yegazi kuthiwa baguga futhi ukugqoka kancane ngaphambi kokuba wonke izinhlelo zomzimba. Futhi abantu kabi lelogama likhuluma ngesikhatsi nalokho ukuba badle, baphuze, uma kungekhona bahileleke ezemidlalo, okungukuthi, lokho ukuphila kwakhe ngokungafanele, ngokushesha lo imfucuza yezinto eziphilayo kanye ubuthi ehlukahlukene imali kwi izindonga imithambo yegazi. Slagging izitsha kuholela Ukuwohloka kwegazi emzimbeni, nakho kubangela izicubu yokuntuleka izakhi ezibalulekile. Ngakho sakha zonke isifo eyaziwa, futhi njengoba kukhona ukuguga zomzimba.

isifo senhliziyo kanye nesifo sikashukela kanye nomdlavuza kuze kube manje, ngokuqinile bamba entendeni zezifo eziyingozi kakhulu kuyo yonke indawo. Ngo leqembu lezifo izitsha inhliziyo futhi ngegazi elandelayo:

- isifo senhliziyo,

- rheumatism isifo senhliziyo,

- iziyaluyalu yegazi cerebral,

- azalwa naso isifo senhliziyo ,

- yamaphaphu embolism,

- deep vein thrombosis,

- neuropathy lwemithambo isifo.

izifo olunamandla ezifana yokufa uhlangothi nokumelwa yinhliziyo kwenzeka ikakhulukazi ngenxa isitsha occlusion evimbela okwengeziwe ukugeleza kwegazi eliya ebuchosheni noma inhliziyo. Isizathu sokuba okuvimba - ezifakwa okunamafutha phezu kwezindonga engaphakathi imithambo yegazi letiphakela igazi enhliziyweni noma ubuchopho.

A nobunzima ekhethekile uzingela isifo semithambo futhi inhliziyo eyikho asymptomatic, uphethwe kwabo ngesikhathi esifanele njalo ngeke kuphela ukusiza ukuvikela eziyingozi, kodwa kwezinye izimo - ekusindiseni ukuphila.