Emzimbeni wethu udlulela ezingaphezu kwezingu-90,000 km zezindishi zegazi ezithwala amalitha angama-4.5-5.5 wegazi.
Isikhungo se-neuralgic salesi simiso esimangalisayo yinhliziyo - isitho esibalulekile samasiphayo esiqhubezela phambili igazi le-oksijeni ukuze kwenziwe umsebenzi weselula ovamile. Lena uhlelo olubaluleke kakhulu, ngoba umsoco wawo wonke amaseli uncike ekusebenzeni kwawo ukusebenza.
Lapho nje ukuhlinzekwa kwamangqamuzana anezakhi zomzimba kwenzeka, igazi libuyela enhliziyweni, lingene emithanjeni engenhla engezansi. Emva kwalokho, ngemuva kokugcwala oksijeni lokukhanya, igazi liyaqhubeka nokuhamba kwalo lonke umzimba.
Amaqiniso anentshisekelo mayelana nokujikeleza kwegazi
- Ukuhamba kwegazi enhliziyweni kuthatha imizuzwana engu-4.
- Ukusakazwa kwegazi emaphethelweni aphansi kuthatha imizuzwana engama-18, futhi ebuchosheni - cishe imizuzwana engu-8.
- Imibuthano engaba ngu-3 000 yosoka ivela nsuku zonke.
- Ubude bemithanjeni yethu yegazi bungaphezu kuka 90,000 km. Lokhu kusho ukuthi bangasongwa emhlabeni wonke kabili.
- Ubuningi besistimu ye-capillary yi-2500 capillari ngayinye yemitha eyi-square yemitha.
Imishanguzo - izitsha ezibhekene nokuphila kwamaselula
Ukuthola amaseli azo zonke izakhi ezidingekayo ngokuphelele kuxhomeke ekujikelezeni kwegazi okuvamile. Futhi yi-arteries eyabangela ukulethwa kwalezi zingxenye zomsoco. Uma kwenzeka ukuthi ukunikezwa kwezakhi kuqala ukungasebenzi, amangqamuzana akhathazekile, aphoqelelwe ukuba afune indlela yokuphuma kwezimo ezingalindelekile. Ekuqaleni bangaqhubeka nokuqhuba umsebenzi wabo, naphezu kokungahambi kahle kwegazi. Kodwa-ke, lokhu kungumkhawulo. Ngokuyinhloko imishanguzo yokuthutha izinto ezimbiwa ngamaminerali, ama-enzyme, amavithamini, ushukela, amafutha kanye ne-oksijeni, okungukuthi, izingxenye eziyisisekelo ezidingekayo emsebenzini obalulekile ojwayelekile kuwo wonke amaseli emzimbeni wethu.
Amandla okukhangwa
Isikhathi esiningi esichitha ukuma noma sihlezi futhi sihlale sihlezi phansi. Ngakho-ke, isithiyo esikhulu esinqoba imithanjeni, ukubuyisela igazi enhliziyweni, kuyisandla sokukhangwa.
Imishanguzo kulula kakhulu ukwenza umsebenzi wayo, njengoba lokhu kuqondiswa ukucima inhliziyo, okudingekayo ukunyakaza kwegazi emzimbeni. Emithanjeni, ngokuphambene nalokho, ingcindezi ibuthakathaka.
Ngakho-ke, ukuze unqobe amandla okukhangwa, uhlelo lwesimiso kumele lube nezinye izinsiza. Isibonelo, uma sigijima noma sihamba, ingcindezi eyenziwa ngophuzu olusenyakatho (ingxenye egobile yezinyawo zonyawo) ivumela igazi ukuba livuke enhliziyweni. Ngalesi sikhathi, indlela yokwenza i-suture ene-venous iqala ukudlala, ebizwa kanjalo ngoba iyinethiwekhi ene-dense yenethiwekhi ye-veins. Umsebenzi oyinhloko esicacile nje ukunikeza umfutho wokuqala wegazi ukuze lezi zinsuku zivuke enhliziyweni.
Ngakolunye uhlangothi, kunezinye izindlela ezisetshenziswayo ohlelweni lwezinambuzane ezihloselwe ukuqinisekisa ukubuyiswa kwegazi okulungile enhliziyweni. Imisipha yezinyosi ezithengiswayo usayizi ngosayizi ngenkathi ikhula, iqhuba ingcindezi emithanjeni ejulile ayithinte ngayo, ngaleyo ndlela iqhube igazi enhliziyweni.
Ehlangothini elingaphakathi kwemithanjeni, kunezivalo ezincane (azidingeki ukuphefumula), eziqondisa imithanjeni enhliziyweni. Okokugcina, okubaluleke kakhulu umsebenzi wokuphefumula, okunikeza umfutho wokuhamba kwegazi lapho isikhukhula sikhuliswa emgodini wesisu.
Amanetha angama-deep and superficial venous
Uhlelo lwezinyosi luqukethe inani elikhulu lemifino ye-dimers ehlukene, isakazwa kuwo wonke umzimba.
Ngokuqondene nesimiso esiphezulu semikhawulo engaphansi yomzimba wethu (imilenze), kufanele ihlukaniswe ibe amanethiwekhi amabili.
- Inethiwekhi ejulile inesibopho sokuthutha igazi eliye lageza imisipha. Izindwangu zenethiwekhi ejulile ziletha enhliziyweni 90% wegazi.
- Inethiwekhi engaphandle ichitha u-10% wegazi namagatsha ezingxenyeni ezingaphansi. Kule nethiwekhi, eyakhiwa izilonda ezingaphansi kwegazi futhi ezingenasici, ukuthi imivimbo ye-varicose ivame ukukhula ngokuyinhloko. Iphuzu elihle ukuthi kusukela isimiso sangaphandle asiklanyelwe ukuthutha igazi elikhulu, ukususwa kwemivamisa ye-varicose akuyona inkinga yendlela yokujikeleza.
Yiba kahle!